Low-energy high-flow strong ion beam material irradiation experiment platform and method

Abstract

The invention discloses a low-energy high-flow strong ion beam material irradiation experiment platform and method, and belongs to the technical field of experiment equipment, the platform comprises a workbench, one side of the upper surface of the workbench is provided with an experiment box body, and the top of the experiment box body is provided with an ion source assembly; a sample test block and an auxiliary experiment component for testing the sample test block are arranged in the experiment box body, and a control assembly is arranged on the other side of the upper surface of the workbench. The position and the angle of the sample test block are adjusted through the driving assembly and the angle adjusting assembly, so that an irradiation area can directly face an ion beam emitting end, the ion beam irradiation precision is improved, after an irradiation experiment is finished, a worker does not need to take out the sample test block, and the working efficiency is improved. The bending and stretching assembly and the monitoring assembly can be used for directly carrying out tensile and bending fatigue tests on the sample test block, so that the sample test block can be effectively prevented from adsorbing impurities in air in the unloading process of the sample test block.

Description

Technical Field

[0001] The invention relates to the technical field of experimental equipment, and in particular to a low-energy and high-current ion beam material irradiation experimental platform and method. Background Art

[0002] With the rapid development of science and technology, materials in many fields such as aerospace, nuclear energy, electronic devices, and biomedicine are facing the test of extreme conditions such as high-energy particle radiation, high temperature and high pressure, and strong magnetic fields. Among them, ion beam irradiation, as an effective simulation method, can accurately control parameters such as irradiation dose, energy, and ion type in a laboratory environment, so as to deeply explore the evolution of the microstructure, changes in physical properties, and changes in chemical composition of materials. Through ion beam irradiation experiments, we can provide a solid theoretical basis and experimental data support for the optimization design of materials, performance improvement, and the development of new materials.

[0003] In order to obtain data on the change of mechanical properties before and after electron irradiation, the existing technical solution is: prepare a batch of experimental samples under the same conditions, use a universal material testing machine to perform tensile and compression tests on a certain number of experimental samples that have not been irradiated with electrons to obtain a set of experimental data; then send a certain number of experimental samples to the electron irradiation device for a certain dose of electron irradiation, and use the universal material testing machine to perform tensile and compression tests after the dose irradiation experiment to obtain experimental data after irradiation. The two sets of experimental data are then compared to verify whether electron irradiation has an effect on the change of mechanical properties of the experimental samples.

[0004] In the above method, the sample needs to be removed from the irradiation experimental equipment after the ion beam irradiation is completed. However, during the unloading process, the sample surface is prone to adsorb impurities in the air. The adsorbed impurities may chemically react with the sample surface and also cover up the true microscopic morphology of the sample surface. During physical testing, the measurement results will be biased. Summary of the invention

[0005] The purpose of the present invention is to provide a low-energy, high-current ion beam material irradiation experimental platform and method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A low-energy, high-current ion beam material irradiation experimental platform comprises a workbench, wherein an experimental box is arranged on one side of the upper surface of the workbench, an ion source assembly is arranged on the top of the experimental box, a sample block and auxiliary experimental components for testing the sample block are arranged in the experimental box, and a control component is arranged on the other side of the upper surface of the workbench; the auxiliary experimental components comprise a driving component, an angle adjustment component, a bending and stretching component and a monitoring component, the driving component is used to adjust the horizontal position of the sample block, the angle adjustment component is used to adjust the inclination angle of the sample block, the bending and stretching component is used to apply tensile test and bending fatigue test to the sample block, and the monitoring component is used to monitor the sample block in real time.

[0007] Preferably, the driving assembly includes a driving frame and a moving seat arranged in the driving frame, two driving columns are sleeved on the moving seat, the two driving columns are arranged up and down and their horizontal projections are perpendicular to each other, and moving blocks are provided at the ends of the driving columns, and the moving blocks are slidably connected to the inner wall of the driving frame, and two motors 1 are provided on the outer side of the driving frame, and the output shafts of the motors 1 are provided with threaded columns, and the threaded columns are respectively threadedly connected to the two moving blocks on adjacent sides, and a supporting platform is provided on the top of the moving seat.

[0008] Preferably, the angle adjustment assembly includes two fixed blocks, and the two fixed blocks are respectively rotatably connected with a drive sleeve and a drive shaft, and the ends of the drive sleeve and the drive shaft are each provided with a motor 2, and an adjustment seat is provided on the drive sleeve, and a rotating shaft is rotatably connected to the adjustment seat, and bevel gears are provided on the bottom end of the rotating shaft and the drive shaft, and the two bevel gears are meshingly connected.

[0009] Preferably, the bending and stretching assembly includes a test bench, the upper surface of which is slidably connected to a slide seat via two slide rails, the top of the slide seat is provided with a carrying frame, the top of the carrying frame is rotatably connected to a carrying arm via a rotating shaft, the top of the carrying arm abutting against the carrying frame is a right-angle structure and the bottom is a 90° arc structure, and the end of the carrying arm is provided with a clamp for fixing the sample test block.

[0010] Preferably, the lower surface of the carrying arm is rotatably connected to the driving arm via a rotating shaft, a lifting plate is arranged between the two carrying frames, both sides of the lifting plate are slidably connected to connecting shafts via sliding grooves, the connecting shafts are rotatably connected to the driving arm, an actuator is arranged in the middle of the upper surface of the test bench, a threaded screw is arranged at the output end of the actuator, and the threaded screw is threadedly connected to the lifting plate.

[0011] Preferably, the monitoring assembly comprises a bracket, a clamping block is connected to the bracket via bolts, and a shooting unit is clamped on one side of the clamping block.

[0012] An experimental method for a low-energy, high-current ion beam material irradiation experimental platform, the specific steps of which include: Select appropriate materials as sample blocks according to the experimental purpose, pre-treat the sample blocks to remove oil and impurities on the surface of the sample blocks, and then mark the surface of the sample blocks so that the irradiated area can be accurately located and analyzed after irradiation; The prepared sample block is mounted on the auxiliary experimental component, and the position and angle of the sample block are adjusted by the driving component and the angle adjustment component, so that the irradiation area can face the ion beam emission end; Record the initial state of the sample block, including the measurement and recording of position, surface morphology, physical and chemical properties, etc.; According to the experimental design, the energy, current intensity and irradiation time parameters of the ion beam are set, and the dynamic monitoring and adjustment of the parameters are achieved by real-time monitoring of the output parameters of the ion source and the ion beam energy detector in the irradiation chamber; During the ion beam irradiation process, the real-time parameters of the irradiation are recorded, such as the energy fluctuation of the ion beam, the change of the flux, and the irradiation time; After the irradiation, the sample block is allowed to cool naturally in a vacuum environment or under the protection of an inert gas, and then the irradiated sample block is subjected to tensile and bending fatigue tests with the cooperation of the bending and tensile components and the monitoring components.

[0013] Compared with the prior art, the present invention has the following beneficial effects: When the present invention conducts an ion beam irradiation experiment, the staff fixes the sample test block on the auxiliary experimental component, and then adjusts the position and angle of the sample test block through the driving component and the angle adjustment component, so that the irradiation area can face the ion beam emission end, thereby improving the ion beam irradiation accuracy. When the irradiation experiment is completed, the staff does not need to take out the sample test block. The sample test block can be directly subjected to tensile and bending fatigue tests through the bending and stretching component and the monitoring component, which can effectively avoid the sample test block absorbing impurities in the air during the unloading process of the sample test block, resulting in deviations in the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a structural schematic diagram of the auxiliary experimental component of the present invention; Figure 4 It is a structural cross-sectional view of the auxiliary experimental component of the present invention; Figure 5 It is a structural schematic diagram of the driving assembly of the present invention; Figure 6 It is a structural schematic diagram of the angle adjustment assembly of the present invention; Figure 7 It is a schematic structural diagram of the bending and stretching assembly of the present invention.

[0015] In the figure: 100, workbench; 200, experimental box; 300, ion source assembly; 400, sample test block; 500, auxiliary experimental component; 600, control assembly; 510, drive assembly; 520, angle adjustment assembly; 530, bending and stretching assembly; 540, monitoring assembly; 550, elastic cover; 5101, drive frame; 5102, moving seat; 5103, drive column; 5104, moving block; 5105, motor 1; 5106, threaded column; 5107, bearing platform; 5201, fixed block; 5202, drive sleeve; 5 203, driving shaft; 5204, motor 2; 5205, adjusting seat; 5206, rotating shaft; 5207, bevel gear; 5301, test bench; 5302, slide rail; 5303, slide seat; 5304, tension sensor; 5305, bearing frame; 5306, bearing arm; 5307, fixture; 5308, driving arm; 5309, lifting plate; 5310, slide groove; 5311, connecting shaft; 5312, actuator; 5313, threaded screw; 5401, bracket; 5402, clamp block; 5403, shooting unit. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 7 , the present invention provides a technical solution: like Figure 1 and Figure 2 As shown, the low-energy high-current ion beam material irradiation experimental platform includes a workbench 100, an experimental box 200 is arranged on one side of the upper surface of the workbench 100, and an ion source assembly 300 is arranged on the top of the experimental box 200, wherein the ion source assembly 300 adopts a high-density radio frequency ion source irradiation system, which can generate high current (1022~1023 / ·s), low energy (5~200 eV) H, D, He ion flow, sample temperature 600~2500 K adjustable, stable performance, running time greater than 30 hours, vacuum degree up to Pa, a sample block 400 and an auxiliary experimental component 500 for testing the sample block 400 are arranged in the experimental box 200, and a control component 600 is arranged on the other side of the upper surface of the workbench 100. The control component 600 is used to accurately control the parameters of the RF power supply, the acceleration power supply, the extraction power supply, etc., as well as the rotation of the turntable, the opening and closing of the valve, etc., so as to realize the automatic control and precise adjustment of the irradiation process, and ensure that the parameters such as the irradiation dose, time and uniformity meet the experimental requirements. By adopting the above structure, when the irradiation experiment is completed, the staff does not need to take out the sample block 400 to realize the testing of the sample block 400.

[0018] like Figure 3 and Figure 4 As shown, the auxiliary experimental component 500 includes a driving component 510, an angle adjustment component 520, a bending and stretching component 530 and a monitoring component 540. The driving component 510 is used to adjust the horizontal position of the sample block 400, the angle adjustment component 520 is used to adjust the inclination angle of the sample block 400, the bending and stretching component 530 is used to apply tensile test and bending fatigue test to the sample block 400, and the monitoring component 540 is used to monitor the sample block 400 in real time. The position and angle of the sample block 400 are adjusted by the driving component 510 and the angle adjustment component 520, so that the irradiation area can be directly opposite to the ion beam emission end, thereby improving the ion beam irradiation accuracy. The bending and stretching component 530 and the monitoring component 540 can directly perform tensile and bending fatigue tests on the sample block 400, which can effectively avoid the sample block 400 absorbing impurities in the air during the unloading process of the sample block 400, resulting in deviations in the measurement results.

[0019] like Figure 5As shown, the driving assembly 510 includes a driving frame 5101 and a moving seat 5102 arranged in the driving frame 5101, two driving columns 5103 are sleeved on the moving seat 5102, the two driving columns 5103 are arranged up and down and their horizontal projections are perpendicular to each other, and the ends of the driving columns 5103 are provided with moving blocks 5104, and the moving blocks 5104 are slidably connected to the inner wall of the driving frame 5101, and two motors 5105 are arranged on the outer side of the driving frame 5101, and the output shafts of the motors 5105 are provided with threaded columns 5106, and the threaded columns 5106 are respectively threadedly connected to the two moving blocks 5104 on the adjacent sides, and the top of the moving seat 5102 is provided with a bearing When the horizontal position of the sample test block 400 needs to be adjusted, one of the motors 5105 is controlled to work so that the threaded column 5106 starts to rotate, and the movable seat 5102 drives the driving column 5103 located above to start moving under the action of the thread, and the movable seat 5102 then moves longitudinally under the guidance of the driving column 5103 located below. The threaded column 5106 starts to rotate by controlling another motor 5105, and the threaded column 5106 starts to rotate. Under the action of the thread, the movable seat 5102 drives the driving column 5103 located below to start moving, and the movable seat 5102 then moves laterally under the guidance of the driving column 5103 located above.

[0020] like Figure 6 As shown, the angle adjustment assembly 520 includes two fixed blocks 5201, and the two fixed blocks 5201 are rotatably connected to the drive sleeve 5202 and the drive shaft 5203 respectively. The ends of the drive sleeve 5202 and the drive shaft 5203 are both provided with a motor 2 5204. The drive sleeve 5202 is provided with an adjustment seat 5205, and the adjustment seat 5205 is rotatably connected to the rotating shaft 5206. The bottom end of the rotating shaft 5206 and the drive shaft 5203 are both provided with a bevel gear 5207. The two bevel gears 5207 are meshed and connected. When the angle of the sample test block 400 needs to be adjusted, one of the motors 5204 is controlled to work so that the drive sleeve 5202 drives the adjustment seat 5205 to start rotating, thereby flipping the sample test block 400. The other motor 5204 is controlled to work so that the drive shaft 5203 starts rotating. Under the transmission of the two bevel gears 5207, the rotating shaft 5206 drives the bending and stretching assembly 530 and the sample test block 400 to rotate.

[0021] like Figure 7As shown, the bending and stretching assembly 530 includes a test bench 5301, the upper surface of which is slidably connected to a slide 5303 via two slide rails 5302, the top of the slide 5303 is provided with a supporting frame 5305, the top of the supporting frame 5305 is rotatably connected to a supporting arm 5306 via a rotating shaft, the top of the supporting arm 5306 and the supporting frame 5305 are in a right angle structure and the bottom is in a 90° arc structure, the end of the supporting arm 5306 is provided with a clamp 5307 for fixing the sample test block 400, and a tension sensor 5304 is provided on the test bench 5301.

[0022] Furthermore, the lower surface of the carrying arm 5306 is rotatably connected to the driving arm 5308 via a rotating shaft, a lifting plate 5309 is arranged between the two carrying frames 5305, and both sides of the lifting plate 5309 are slidably connected with connecting shafts 5311 through sliding grooves 5310, and the connecting shaft 5311 is rotatably connected to the driving arm 5308. An actuator 5312 is arranged in the middle of the upper surface of the test bench 5301, and a threaded screw 5313 is arranged at the output end of the actuator 5312, and the threaded screw 5313 is threadedly connected to the lifting plate 5309.

[0023] Specifically, after the irradiation is completed, the sample block 400 is allowed to cool naturally in a vacuum environment or under the protection of an inert gas. When a tensile test is required for the sample block 400, the actuator 5312 is controlled to work so that the threaded screw 5313 rotates, and the lifting plate 5309 moves upward under the action of the thread. Since the top of the side where the carrying arm 5306 abuts against the carrying frame 5305 is a right-angle structure and the bottom is a 90° arc structure, as the lifting plate 5309 moves upward, the two driving arms 5308 push the carrying arm 5306 and the carrying frame 5305 respectively. The clamp 5307 moves in the opposite direction to apply tension to the sample test block 400. The tension sensor 5304 can monitor the size of the applied tension. When it is necessary to perform a bending fatigue test on the sample test block 400, the actuator 5312 is controlled to rotate the threaded screw 5313. Under the action of the thread, the lifting plate 5309 moves downward first and then upward. The driving arm 5308 pulls the load-bearing arm 5306 and the clamp 5307 to perform reciprocating flipping, thereby realizing a bending fatigue test on the sample test block 400.

[0024] like Figure 3 As shown, the monitoring component 540 includes a bracket 5401 , to which a clamping block 5402 is connected via bolts, and a shooting unit 5403 is clamped on one side of the clamping block 5402 .

[0025] Furthermore, an elastic cover 550 is provided between the support platform 5107 and the test platform 5301 to protect the angle adjustment component 520 .

[0026] An experimental method for a low-energy, high-current ion beam material irradiation experimental platform, the specific steps comprising: According to the purpose of the experiment, a suitable material is selected as the sample block 400, and the sample block 400 is pre-treated to remove oil stains, impurities, etc. on the surface of the sample block 400. The method of ultrasonic cleaning with an organic solvent (such as acetone, ethanol) can be used, and then the surface of the sample block 400 is marked so that the irradiated area can be accurately located and analyzed after irradiation. The marking can be carried out by photolithography, micro-machining and other technologies, or simply by marking the sample surface with a material that is not easily affected by irradiation (such as a ceramic marking pen); The prepared sample block 400 is mounted on the auxiliary experimental component 500, and the position and angle of the sample block 400 are adjusted by the driving component 510 and the angle adjustment component 520, so that the irradiation area can face the ion beam emission end; Recording the initial state of the sample block 400, including measurement and recording of position, surface morphology (the initial image can be taken by an optical microscope or an electron microscope), physical and chemical properties (such as hardness, conductivity, etc.); According to the experimental design, the energy, current intensity and irradiation time parameters of the ion beam are set. The output parameters of the ion source (such as ion current, voltage, etc.) and the ion beam energy detector in the irradiation chamber are monitored in real time to achieve dynamic monitoring and adjustment of the parameters. At the same time, the macroscopic phenomena of the sample during the irradiation process are observed and recorded, such as whether there is luminescence, heat generation, color change, etc.; During the ion beam irradiation process, the real-time parameters of the irradiation are recorded, such as the energy fluctuation of the ion beam, the change of the flux, and the irradiation time; After the irradiation is completed, the sample block 400 is allowed to cool naturally in a vacuum environment or under the protection of an inert gas, and then the irradiated sample block 400 is subjected to a tensile test and a bending fatigue test in cooperation with the bending and stretching assembly 530 and the monitoring assembly 540 .

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Low-energy, high-current ion beam material irradiation experimental platform, including a workbench, characterized in that: An experimental box is arranged on one side of the upper surface of the workbench, an ion source assembly is arranged on the top of the experimental box, a sample block and auxiliary experimental components for testing the sample block are arranged in the experimental box, and a control assembly is arranged on the other side of the upper surface of the workbench; The auxiliary experimental components include a driving component, an angle adjustment component, a bending and stretching component and a monitoring component. The driving component is used to adjust the horizontal position of the sample block, the angle adjustment component is used to adjust the inclination angle of the sample block, the bending and stretching component is used to apply tensile test and bending fatigue test to the sample block, and the monitoring component is used to monitor the sample block in real time.

2. The low-energy, high-current ion beam material irradiation experimental platform according to claim 1 is characterized in that: The driving assembly includes a driving frame and a moving seat arranged in the driving frame, two driving columns are sleeved on the moving seat, the two driving columns are arranged up and down and their horizontal projections are perpendicular to each other, and moving blocks are arranged at the ends of the driving columns, and the moving blocks are slidably connected to the inner wall of the driving frame, and two motors 1 are arranged on the outer side of the driving frame, and the output shafts of the motors 1 are provided with threaded columns, and the threaded columns are respectively threadedly connected to the two moving blocks on adjacent sides, and a bearing platform is arranged on the top of the moving seat.

3. The low-energy, high-current ion beam material irradiation experimental platform according to claim 1, characterized in that: The angle adjustment assembly includes two fixed blocks, and the two fixed blocks are respectively rotatably connected with a drive sleeve and a drive shaft, and the ends of the drive sleeve and the drive shaft are each provided with a second motor, and an adjustment seat is provided on the drive sleeve, and a rotating shaft is rotatably connected to the adjustment seat, and bevel gears are provided on the bottom end of the rotating shaft and the drive shaft, and the two bevel gears are meshingly connected.

4. The low-energy, high-current ion beam material irradiation experimental platform according to claim 1, characterized in that: The bending and stretching assembly includes a test bench, the upper surface of which is slidably connected to a slide seat via two slide rails, the top of the slide seat is provided with a carrying frame, the top of the carrying frame is rotatably connected to a carrying arm via a rotating shaft, the top of the carrying arm abutting against the carrying frame is a right-angle structure and the bottom is a 90° arc structure, and the end of the carrying arm is provided with a clamp for fixing the sample test block.

5. The low-energy, high-current ion beam material irradiation experimental platform according to claim 4, characterized in that: The lower surface of the carrying arm is rotatably connected to the driving arm via a rotating shaft, a lifting plate is arranged between the two carrying frames, both sides of the lifting plate are slidably connected to connecting shafts via sliding grooves, the connecting shafts are rotatably connected to the driving arm, an actuator is arranged in the middle of the upper surface of the test bench, a threaded screw is arranged at the output end of the actuator, and the threaded screw is threadedly connected to the lifting plate.

6. The low-energy, high-current ion beam material irradiation experimental platform according to claim 1, characterized in that: The monitoring assembly comprises a bracket, a clamping block is connected to the bracket via bolts, and a shooting unit is clamped on one side of the clamping block.

7. An experimental method based on the low-energy, high-current ion beam material irradiation experimental platform according to any one of claims 1 to 6, characterized in that: The specific steps include: Select appropriate materials as sample blocks according to the experimental purpose, pre-treat the sample blocks to remove oil and impurities on the surface of the sample blocks, and then mark the surface of the sample blocks so that the irradiated area can be accurately located and analyzed after irradiation; The prepared sample block is mounted on the auxiliary experimental component, and the position and angle of the sample block are adjusted by the driving component and the angle adjustment component, so that the irradiation area can face the ion beam emission end; Record the initial state of the sample block, including the measurement and recording of position, surface morphology, physical and chemical properties, etc.; According to the experimental design, the energy, current intensity and irradiation time parameters of the ion beam are set, and the dynamic monitoring and adjustment of the parameters are achieved by real-time monitoring of the output parameters of the ion source and the ion beam energy detector in the irradiation chamber; During the ion beam irradiation process, the real-time parameters of the irradiation are recorded, such as the energy fluctuation of the ion beam, the change of the flux, and the irradiation time; After the irradiation, the sample block is allowed to cool naturally in a vacuum environment or under the protection of an inert gas, and then the irradiated sample block is subjected to tensile and bending fatigue tests with the cooperation of the bending and tensile components and the monitoring components.

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