Experimental platform and experimental method for testing gas behavior of material

Abstract

The invention relates to the technical field of material testing and preparation, in particular to a material gas behavior testing experimental platform and experimental method.The experimental platform comprises a gas supply system, a vacuum pump system, a detection mechanism, reaction generation mechanisms and at least two or more types of reaction generation mechanisms; at least one mounting position matched with the reaction generation mechanism is arranged in the reaction generation mechanism, the reaction generation mechanism is connected with a heating mechanism, the gas supply system, the vacuum pump system and the detection mechanism are respectively communicated with a pipeline of the reaction generation mechanism, a plurality of valves are arranged on the pipeline, and a flow meter and a pressure meter are arranged between the gas supply system and the reaction generation mechanism. The test platform is adopted in the test method. One experiment platform can complete various experiments, test cost and space resources are reduced, material test efficiency is improved, meanwhile, preparation of the metal hydride and desorption test of the prepared metal hydride can be carried out, a sample can be continuously subjected to test experiments after preparation, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of material testing and preparation, and particularly relates to an experimental platform and experimental method for testing the gas behavior of a material. Background Art

[0002] The existing tests for the gas behavior of materials mainly include thermal desorption spectrometry (TDS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), etc. Usually, they need to be completed in cooperation with a high-vacuum background and a mass spectrometer. Taking the thermal desorption spectrometry (TDS), which is commonly used in the research and testing of the gas behavior of materials, as an example, this experiment mainly uses a mass spectrometer to capture the gas signals released by the sample under a high-vacuum background. The devices used for the existing tests of the gas behavior of materials are all single ones set for each test, and the functions of the devices used in each test are single. When multiple types of gas behavior tests need to be carried out, different devices need to be prepared for different tests, resulting in a high test cost and the devices occupying a large space in the laboratory. At the same time, the materials used for gas behavior tests need to be separately prepared before the test and then transferred to the test device, requiring dedicated preparation equipment. Moreover, some relatively active materials are prone to react with air during the transfer process, which may lead to a deviation between the final test results of the materials and the actual situation, affecting the test and application of the materials. Summary of the Invention

[0003] The purpose of the present invention is to provide an experimental platform and experimental method for testing the gas behavior of a material, aiming at the technical problems that the devices used for the existing gas behavior tests have single functions, resulting in a high test cost, occupying a large space in the laboratory, and the materials need to be transferred during the test process after preparation, and are prone to contact air and affect the test results.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] An experimental platform for testing the gas behavior of a material, comprising a gas supply system, a vacuum pump system, a detection mechanism, and at least two or more types of reaction generating mechanisms. The reaction generating mechanism is connected with a heating mechanism. The gas supply system, the vacuum pump system, and the detection mechanism are respectively connected to the reaction generating mechanism through pipelines. A plurality of valves are provided on the pipelines. A flowmeter and a pressure gauge are provided between the gas supply system and the reaction generating mechanism.

[0006] An experimental platform for testing the gas behavior of a material of the present invention can replace the reaction generating mechanism according to the test requirements by configuring various types of reaction generating mechanisms, enabling the experimental platform to meet various gas behavior test experiments that require vacuum pumping and heating. This allows a single experimental platform to complete multiple gas experiments, reducing test costs and space resources and improving the test efficiency of materials. At the same time, by controlling the connection state of each part through valves, it is possible to change the internal environment of the reaction generating mechanism, enabling the preparation of metal hydrides within the reaction generating mechanism and also performing desorption tests on the prepared metal hydrides, so that the sample can continuously undergo subsequent test experiments without contacting air after preparation, improving the accuracy of test results.

[0007] As a preferred embodiment of the present invention, the heating mechanism can at least provide a working temperature in the range from room temperature to 1100 °C for the reaction generating mechanism to provide a test environment that meets the requirements.

[0008] As a preferred embodiment of the present invention, the vacuum pump system includes a molecular pump and a backing pump connected in sequence. The vacuum pump system can at least provide a working environment with a vacuum degree of 10 -5 Pa for the reaction generating mechanism to provide a test environment that meets the requirements.

[0009] As a preferred embodiment of the present invention, the reaction generating mechanism includes a double-open quartz tube, a double-open flange stainless steel tube, and a single-open quartz tube. The double-open quartz tube can be used for the sample preparation of metal hydrides, the double-open flange stainless steel tube can be used for the airtightness test of the sample, and the single-open quartz tube can be used for the TDS experiment of the sample. The setting of multiple reaction generating mechanisms provides a test environment that meets the requirements for experiments with different materials and different test requirements.

[0010] As a preferred embodiment of the present invention, the gas supply system includes a hydrogen gas supply mechanism and a helium gas supply mechanism. The hydrogen gas supply mechanism and the helium gas supply mechanism are respectively connected to the reaction generating mechanism to provide different types of test gases and realize sample preparation and testing under the action of different types of gases.

[0011] As a preferred embodiment of the present invention, the gas supply system includes a number of gas cylinders. The gas cylinders are connected to a gas quantitative storage device, the gas quantitative storage device is connected to the reaction generating mechanism, a flow meter is arranged between the gas cylinders and the gas quantitative storage device, and a pressure gauge is connected to the gas quantitative storage device. Through the combination of gas cylinders and quantitative storage devices, it is possible to provide sufficient test gases for the experimental platform through gas cylinders and also provide a set amount of test gases for the experimental platform through the quantitative storage device to meet sample preparation and testing under different conditions.

[0012] An experimental method for testing the gas behavior of a material, using an experimental platform for testing the gas behavior of a material as described above, and comprising the following steps:

[0013] S1. Prepare a reaction generating mechanism according to the test requirements, and place the sample to be tested in the reaction generating mechanism;

[0014] S2. Use a vacuum pump system to provide a working environment that meets the vacuum degree requirements for the reaction generating mechanism;

[0015] S3. Use a heating mechanism to heat the reaction generating mechanism to a specified temperature;

[0016] S4. Conduct sample preparation, airtightness test or TDS experiment of metal hydride according to the test requirements; the sample preparation, airtightness test and TDS experiment are carried out separately by replacing the reaction generating mechanism, or, the sample preparation and TDS test are carried out continuously without replacing the reaction generating mechanism.

[0017] The experimental method for testing the gas behavior of a material of the present invention can meet the testing of different types of gas behaviors of different materials by using the above experimental platform. Through the functional coupling of the experimental platform, the efficiency and accuracy of the experimental process are improved, and the continuous detection after sample preparation can be realized, and the accuracy of the experimental results is improved.

[0018] As a preferred embodiment of the present invention, the sample preparation of the metal hydride includes: placing the metal to be reacted in the reaction generating mechanism, storing a certain amount of hydrogen in the gas quantitative storage device, connecting the gas quantitative storage device and the reaction generating mechanism of the double-opening quartz tube, recording the pressure change in the reaction generating mechanism before and after the reaction of the sample to be tested with hydrogen through a pressure gauge, and calculating the amount of hydrogen absorbed by the sample to be tested in the reaction, so as to realize the reaction of quantitatively charging hydrogen. To realize the preparation of metal hydride under quantitative hydrogen charging.

[0019] As a preferred embodiment of the present invention, the sample preparation of the metal oxide includes: placing the metal to be reacted in the reaction generating mechanism, connecting the gas cylinder and the reaction generating mechanism of the double-opening quartz tube, and controlling the reaction of charging hydrogen at a constant speed through a flow meter. To realize the preparation of metal hydride under constant-speed hydrogen charging, it can avoid the cracking of the sample caused by excessive hydrogen charging pressure, and can meet the preparation of metal hydrides with larger size and purity.

[0020] As a preferred embodiment of the present invention, the TDS experiment includes disconnecting the connection between the gas supply system and the reaction generating mechanism, heating the reaction generating mechanism to the working temperature through a heating mechanism in a working environment with the required vacuum degree, and detecting the signal of the overflow gas through a detection mechanism; the airtightness test includes charging helium into one side of the reaction generating mechanism through the gas supply system, and detecting the helium signal through a detection mechanism on the other side.

[0021] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0022] 1. The gas behavior test experimental platform for a material of the present invention can replace the reaction generating mechanism inside the reaction generating mechanism according to the test requirements by configuring various types of reaction generating mechanisms, enabling the experimental platform to meet various gas behavior test experiments that require vacuum pumping and heating. Thus, one experimental platform can complete multiple gas experiments, reducing the test cost and space resources and improving the test efficiency of the material;

[0023] 2. The gas behavior test experimental platform for a material of the present invention can change the environment inside the reaction generating mechanism by controlling the connection state of each part through valves, enabling the preparation of metal hydrides inside the reaction generating mechanism and also enabling the desorption test of the prepared metal hydrides. This allows the sample to continuously undergo subsequent test experiments without contacting air after preparation, improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the gas behavior test experimental platform for a material of the present invention;

[0025] Reference numerals: 1 - gas supply system, 11 - hydrogen gas supply mechanism, 12 - helium gas supply mechanism, 13 - gas quantitative storage device, 2 - vacuum pump system, 21 - molecular pump, 22 - fore pump, 3 - detection mechanism, 4 - reaction generating mechanism, 41 - double - opening quartz tube, 42 - double - opening flange stainless steel tube, 43 - single - opening quartz tube, 5 - heating mechanism, 6 - valve, 7 - flowmeter, 8 - pressure gauge, 9 - vacuum gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be described in detail below with reference to the drawings.

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Embodiment 1

[0029] As Figure 1 shown, a gas behavior test experimental platform for a material includes a gas supply system 1, a vacuum pump system 2, a detection mechanism 3, and at least two or more reaction generating mechanisms 4. The reaction generating mechanism 4 is connected to a heating mechanism 5. The gas supply system 1, the vacuum pump system 2, and the detection mechanism 3 are respectively connected to the reaction generating mechanism 4 through pipelines. A plurality of valves 6 are provided on the pipelines. A flowmeter 7 and a pressure gauge 8 are provided between the gas supply system 1 and the reaction generating mechanism 4.

[0030] The gas supply system 1 is used to provide the gas source for the experiment reaction for the experimental platform. The gas supply system 1 can be a combination of multiple gas cylinders, which is connected to the reaction mechanism 4 through pipelines.

[0031] Preferably, a valve 6 is provided on the pipeline between the gas cylinder of the gas supply system 1 and the reaction mechanism 4, so that different gas cylinders can be used for gas supply according to the actual situation. Different types of gases can be filled in different gas cylinders according to the actual situation to meet different experimental requirements.

[0032] Preferably, a flowmeter 7 is provided on the pipeline between the gas cylinder of the gas supply system 1 and the reaction mechanism 4, so that the flow rate of the gas output from the gas cylinder can be adjusted according to the actual situation, so as to provide a constant-speed gas flow for the reaction mechanism 4 to meet the experimental requirements of specific needs.

[0033] Preferably, the gas supply system 1 can include a hydrogen gas supply mechanism 11 and a helium gas supply mechanism 12. The hydrogen gas supply mechanism 11 and the helium gas supply mechanism 12 can be two independently arranged gas cylinders, which are respectively connected to the reaction mechanism 4 through pipelines with valves 6 to provide different types of test gases and realize sample preparation and testing under the action of different types of gases.

[0034] Preferably, the gas supply system 1 can also include a gas quantitative memory 13. The gas quantitative memory 13 is a container with a known volume. The gas quantitative memory 13 can be connected to the gas cylinder pipeline and can be filled with gas from the gas cylinder into the gas quantitative memory 13 for temporary storage. A pressure gauge 8 can be connected to the gas quantitative memory 13, and the gas pressure in the gas quantitative memory 13 can be read through the pressure gauge 8 to calculate the amount of gas stored therein, so as to provide a quantitative gas for the reaction mechanism 4 to meet sample preparation and testing under the action of different amounts of gas.

[0035] Preferably, the flowmeter 7 can be arranged between the gas cylinder and the gas quantitative memory 13, the pressure gauge 8 can be connected to the gas quantitative memory 13, and the pressure gauge 8 can also be arranged between the gas quantitative memory 13 and the reaction mechanism 4. Through the combination of the gas cylinder and the quantitative memory, enough test gases can be provided for the test platform through the gas cylinder, and a set amount of test gases can also be provided for the test platform through the quantitative memory to meet sample preparation and testing under different conditions.

[0036] The heating mechanism 5 is used to heat the reaction mechanism 4 to the specified working temperature.

[0037] Preferably, the heating mechanism 5 can at least provide the working temperature for the reaction mechanism 4 in the range from room temperature to 1100 °C to provide a test environment that meets the requirements.

[0038] Preferably, the heating mechanism 5 can be a tube furnace, especially a multi-temperature zone tube furnace, which can set different temperatures according to different process requirements, and is provided with multiple temperature display and control instruments on the furnace body to realize the adjustment and display of temperature. The reaction occurrence mechanism 4 is clamped in the tube furnace and can maintain a stable working temperature under the action of the tube furnace.

[0039] The vacuum pump system 2 is used to evacuate the experimental platform to meet the required vacuum degree for the experiment.

[0040] Preferably, the vacuum pump system 2 can include a molecular pump 21 and a backing pump 22 connected in sequence, and a vacuum gauge 9 is installed on the pipeline. The vacuum pump system 2 can at least provide a working environment with a vacuum degree of 10-5 Pa for the reaction occurrence mechanism 4.

[0041] The reaction occurrence mechanism 4 is a carrier mechanism for containing the test materials, a container structure in which the materials react and are tested under the set temperature and vacuum degree, and different experimental requirements can be met by replacing the reaction occurrence mechanism 4 in the middle of the experimental platform.

[0042] Preferably, the reaction occurrence mechanism 4 can include a double-opening quartz tube 41, a double-opening flange stainless steel tube 42, and a single-opening quartz tube 43. The double-opening quartz tube 41 can be used for the sample preparation of metal hydrides, the double-opening flange stainless steel tube 42 can be used for the airtightness test of the samples, and the single-opening quartz tube 43 can be used for the TDS experiment of the samples. The simultaneous setting of multiple reaction occurrence mechanisms 4 can provide a test environment that meets the requirements for experiments with different materials and different test requirements.

[0043] Preferably, when the double-opening quartz tube 41 is used, the required product can be generated by the reaction of gas with the matrix material under the environment of high vacuum degree and required working temperature. For example, metal hydrides can be prepared under this environment.

[0044] Specifically, taking the preparation of metal hydrides using the double-opening quartz tube 41 as an example, first, the entire system of the experimental platform is evacuated to the required vacuum degree by the vacuum pump system 2, then the quartz tube is heated to the specified temperature by the tube furnace, hydrogen stored in the gas quantitative storage mechanism is introduced, hydrogen reacts with the metal in the quartz tube, and the pressure change from before the reaction to after the reaction is recorded by the pressure gauge 8, and the amount of hydrogen absorbed by the sample can be calculated, so as to realize the sample preparation under quantitative hydrogen charging.

[0045] Specifically, taking the preparation of large-sized and high-concentration metal hydrides using a double-open quartz tube 41 as an example, the large-sized and high-concentration material sample can be a large cylinder with a diameter of 30 mm and a length of 50 mm. At this time, if the quantitative hydrogen charging method is continued, hydrogen with a relatively high pressure is required. The direct contact between the hydrogen with too high pressure and the sample will cause the sample to crack, unable to ensure the quality of the prepared metal hydride, and affecting the smooth progress of the preparation process. Therefore, it is changed to control the flow rate of the hydrogen charged through the flowmeter 7 to avoid the sample cracking due to the too-fast charging of hydrogen, so as to realize the sample preparation under constant-speed hydrogen charging.

[0046] Preferably, when using a double-open flange stainless steel tube 42, the carrier can be clamped by two stainless steel tubes, and the sample can be encapsulated on the carrier for high-vacuum airtightness measurement.

[0047] Specifically, taking a tubular sample as an example, through the sealed assembly of the sample and the carrier, and the connection with the flange, two double-open flange stainless steel tubes 42 can be accessed. The two double-open flange stainless steel tubes 42 are respectively connected to the left and right ends of the sample carrier. The left stainless steel tube is connected to the gas supply system 1, and the right stainless steel tube is connected to the detection mechanism 3. Using the tube wall of the tubular sample as a barrier, the vacuum pump system 2 is divided into two spatial parts on the left and right. Appropriate amount of helium, such as 10 Pa - 1.5×106 Pa, is filled on the left, and at the same time, it is observed whether the mass spectrometer on the right detects the rising helium signal to realize the airtightness test of the sample. If other types of samples, such as cylinders, wafers, etc., need to be detected, then by replacing the reaction mechanism 4 in the middle and the sealing method, the sample can be accessed to the double-open flange stainless steel tube 42 and the vacuum system can be divided, and then the airtightness detection can be carried out.

[0048] Preferably, when using a single-open quartz tube 43, the entire system of the experimental platform can reach the range where the mass spectrometer can work normally through the vacuum pump system 2. By heating the quartz tube with a tube furnace, the sample will release gas, and the released gas signal will be detected by the mass spectrometer, thus realizing the smooth progress of the TDS experiment.

[0049] The detection mechanism 3 is a gas signal detection mechanism 3 supporting the experimental platform, used to detect the gas signal during the reaction or test process.

[0050] Preferably, the detection mechanism 3 can be a quadrupole mass spectrometer.

[0051] Preferably, the mass spectrometer can determine whether the sample leaks by judging whether the charging gas signal is detected during the airtightness test of the sample, or can also perform thermal desorption analysis by capturing the gas signal released by the sample under the high-vacuum background.

[0052] An experimental platform for testing the gas behavior of a material in this embodiment can be functionally divided into three parts: left, middle, and right. The left part is the gas supply system 1, the middle part is the reaction occurrence mechanism 4, and the right part is the vacuum pump system 2 and the detection mechanism 3. Each part is connected by metal pipes, and valves 6 are provided on the pipes between each component, enabling the components to be connected or truncated according to the actual situation, and can be switched according to the experimental process. At the same time, it ensures that relevant isolation can be carried out in a timely manner in case of accidents to guarantee the safety of the experimental platform. When in use, the vacuum pump system 2 is used to maintain a vacuum environment in the reaction occurrence mechanism 4, and the gas supply system 1 supplies gas sources to the middle reaction occurrence mechanism 4, enabling the material to react or be tested in the reaction occurrence mechanism 4. The detection mechanism 3 conducts corresponding detections according to the actual situation, and the reaction occurrence mechanism 4 is replaced according to the actual detection requirements.

[0053] An experimental platform for testing the gas behavior of a material in this embodiment can, by configuring various types of reaction occurrence mechanisms 4, replace the reaction occurrence mechanism 4 according to the test requirements, enabling the experimental platform to meet various gas behavior test experiments that require vacuum pumping and heating. This allows one experimental platform to complete multiple gas experiments, reducing test costs and space resources, and improving the test efficiency of the material. At the same time, by controlling the connection state of each part through the valve 6, the environment inside the reaction occurrence mechanism 4 can be changed, enabling the preparation of metal hydrides inside the reaction occurrence mechanism 4 and also enabling the desorption test of the prepared metal hydrides, allowing the sample to continuously undergo subsequent test experiments without contacting air after preparation, thereby improving the accuracy of the test results.

[0054] Example 2

[0055] An experimental method for testing the gas behavior of a material uses the experimental platform for testing the gas behavior of a material in Example 1 and includes the following steps:

[0056] S1. Prepare the reaction occurrence mechanism 4 according to the test requirements and set the sample to be tested inside the reaction occurrence mechanism 4;

[0057] S2. Use the vacuum pump system 2 to provide a working environment that meets the vacuum degree requirements for the reaction occurrence mechanism 4;

[0058] S3. Use the heating mechanism 5 to heat the reaction occurrence mechanism 4 to the specified temperature;

[0059] S4. Conduct sample preparation, airtightness test, or TDS experiment of metal hydrides according to the test requirements; The sample preparation, airtightness test, and TDS experiment are carried out separately by replacing the reaction occurrence mechanism 4, or the sample preparation and TDS test are carried out continuously without replacing the reaction occurrence mechanism 4.

[0060] Preferably, the sample preparation of metal hydride includes: placing the metal to be reacted in the reaction mechanism 4, storing a quantified amount of hydrogen gas in the gas metering storage 13, connecting the gas metering storage 13 and the reaction mechanism 4 of the double-opening quartz tube 41, recording the pressure change in the reaction mechanism 4 before and after the reaction of the sample to be tested with hydrogen gas through the pressure gauge 8, calculating the amount of hydrogen gas absorbed by the sample to be tested during the reaction, and realizing the reaction of quantitatively charging hydrogen gas. Thereby realizing the preparation of metal hydride under quantitative hydrogen charging.

[0061] Preferably, the sample preparation of metal oxide includes: placing the metal to be reacted in the reaction mechanism 4, connecting the gas cylinder and the reaction mechanism 4 of the double-opening quartz tube 41, and realizing the reaction of charging hydrogen gas at a constant speed through the control of the flowmeter 7. Thereby realizing the preparation of metal hydride under constant-speed hydrogen charging, which can avoid the cracking of the sample caused by excessive hydrogen charging pressure and can meet the preparation of metal hydrides with larger sizes and purities.

[0062] Preferably, the TDS experiment includes disconnecting the connection between the gas supply system 1 and the reaction mechanism 4, heating the reaction mechanism 4 to the working temperature through the heating mechanism 5 in a working environment with the required vacuum degree, and detecting the signal of the overflow gas through the detection mechanism 3; the airtightness test includes charging helium gas into one side of the reaction mechanism 4 through the gas supply system 1 and detecting the helium gas signal through the detection mechanism 3 on the other side.

[0063] The gas behavior test experimental method of a material in this embodiment can meet the different types of gas behavior tests of different materials by using the above experimental platform. Through the functional coupling of the experimental platform, the efficiency and accuracy of the experimental process are improved, and the continuous detection after sample preparation can be realized, thereby improving the accuracy of the experimental results.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas behavior test platform for materials, characterized in that: The invention comprises an air supply system (1), a vacuum pump system (2), a detection mechanism (3), and at least two or more reaction generating mechanisms (4); the reaction generating mechanism (4) is connected to a heating mechanism (5); the air supply system (1), the vacuum pump system (2), and the detection mechanism (3) are respectively connected to the pipelines of the reaction generating mechanism (4); a plurality of valves (6) are provided on the pipelines; and a flow meter (7) and a pressure gauge (8) are provided between the air supply system (1) and the reaction generating mechanism (4).

2. A gas behavior test platform for materials according to claim 1, characterized in that: The heating mechanism (5) is at least capable of providing the reaction generating mechanism (4) with an operating temperature ranging from room temperature to 1100°C.

3. A gas behavior test platform for materials according to claim 2, characterized in that: The vacuum pump system (2) comprises a molecular pump (21) and a pre-pump (22) connected in sequence, and the vacuum pump system (2) can at least provide a working environment with a vacuum degree of 10-5 Pa for the reaction generating mechanism (4).

4. A gas behavior test platform for materials as claimed in claim 3, characterized in that: The reaction generating mechanism (4) comprises a double-opening quartz tube (41), a double-opening flange stainless steel tube (42) and a single-opening quartz tube (43); the double-opening quartz tube (41) can be used for sample preparation of metal hydride, the double-opening flange stainless steel tube (42) can be used for air tightness test of the sample, and the single-opening quartz tube (43) can be used for TDS experiment of the sample.

5. A gas behavior test platform for a material according to any one of claims 1 to 4, characterized in that: The gas supply system (1) comprises a hydrogen gas supply mechanism (11) and a helium gas supply mechanism (12), and the hydrogen gas supply mechanism (11) and the helium gas supply mechanism (12) are respectively connected to the reaction generating mechanism (4).

6. A gas behavior test platform for materials according to claim 5, characterized in that: The gas supply system (1) comprises a plurality of gas cylinders, the gas cylinders being connected to a gas quantitative storage device (13), the gas quantitative storage device (13) being connected to the reaction generating mechanism (4), the flow meter (7) being arranged between the gas cylinders and the gas quantitative storage device (13), and the pressure gauge (8) being connected to the gas quantitative storage device (13).

7. A gas behavior test method for a material, characterized in that: A gas behavior test platform for a material according to claim 6 is used, and comprises the following steps: S1. Prepare a reaction mechanism (4) according to test requirements, and place a sample to be tested in the reaction mechanism (4); S2. Using a vacuum pump system (2) to provide a working environment that meets vacuum requirements for a reaction mechanism (4); S3, using the heating mechanism (5) to heat the reaction generating mechanism (4) to a specified temperature; S4. Performing sample preparation, air tightness test or TDS experiment of metal hydride according to test requirements; sample preparation, air tightness test and TDS experiment are performed separately by replacing the reaction generating mechanism (4) respectively, or sample preparation and TDS experiment are performed continuously without replacing the reaction generating mechanism (4).

8. The gas behavior test experimental method of a material according to claim 7, characterized in that: The sample preparation of the metal hydride comprises: arranging a metal to be reacted in a reaction generating mechanism (4), storing a quantitative amount of hydrogen in a gas quantitative storage device (13), connecting the gas quantitative storage device (13) and the reaction generating mechanism (4) of a double-opening quartz tube (41), recording the pressure change in the reaction generating mechanism (4) before and after the reaction between the sample to be tested and the hydrogen through a pressure gauge (8), calculating the amount of hydrogen absorbed by the sample to be tested, and realizing a reaction of quantitatively charging hydrogen.

9. The gas behavior test experimental method of a material according to claim 7, characterized in that: The sample preparation of the metal oxide comprises: arranging the metal to be reacted in a reaction generating mechanism (4), connecting the reaction generating mechanism (4) of a gas bottle and a double-opening quartz tube (41), and controlling the reaction of charging hydrogen at a constant speed through a flow meter (7).

10. The gas behavior test experimental method of a material according to claim 7, characterized in that: The TDS experiment includes disconnecting the gas supply system (1) from the reaction generating mechanism (4), heating the reaction generating mechanism (4) to the working temperature through the heating mechanism (5) under a working environment requiring a vacuum degree, and detecting the overflow gas signal through the detection mechanism (3); the air tightness test includes filling helium into one side of the reaction generating mechanism (4) through the gas supply system (1), and detecting the helium signal on the other side through the detection mechanism (3).

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