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Method for determining volume hydrogen content in high-purity aluminum or high-purity aluminum alloy

A technology of aluminum alloy and hydrogen content, which is applied in the direction of measuring devices, test sample preparation, sampling, etc., can solve the problems of hydrogen and other impurity gas precipitation, low hydrogen content, and no consideration of surface hydrogen interference, etc.

Pending Publication Date: 2020-10-23
KONFOONG MATERIALS INTERNATIONAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since both the flux and the sample come from the aluminum alloy sample, impurity gases such as hydrogen in the sample are easily precipitated during the se

Method used

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  • Method for determining volume hydrogen content in high-purity aluminum or high-purity aluminum alloy

Examples

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Embodiment 1

[0063] This example provides a method for measuring the volumetric hydrogen content in high-purity aluminum or high-purity aluminum alloys. The GBW(E)020030 aluminum alloy (brand 7B04) developed by Beijing Aeronautical Materials Institute is selected as the sample to be tested, and its volume is known. Hydrogen content is (0.19 ± 0.04) ppm, with this the accuracy of verification method, described method comprises the following steps:

[0064] (1) The sample to be tested is divided into sample A to be tested and sample B to be tested by turning, and then pre-treated respectively and put into sherwood oil for use;

[0065] Wherein, the pretreatment includes sample preparation and cleaning; the sample preparation is to machine the sample A and the sample B to be tested into a cylindrical shape with a diameter of 5 mm and a height of 24 mm by turning; The cleaning is to place the test sample A or test sample B obtained by the sample preparation in carbon tetrachloride for ultrason...

Embodiment 2

[0082] This embodiment provides a method for measuring the volume hydrogen content in high-purity aluminum or high-purity aluminum alloy. A high-purity aluminum ingot is selected as the sample to be tested, and the volume hydrogen content is about 0.15-0.2ppm. The method includes the following step:

[0083] (1) The sample to be tested is divided into sample A to be tested and sample B to be tested by turning, and then pre-treated respectively and put into sherwood oil for use;

[0084] Wherein, the pretreatment includes sample preparation and cleaning; the sample preparation is to machine the sample A and the sample B to be tested into a cylindrical shape with a diameter of 6 mm and a height of 25 mm by turning; The cleaning is to place the test sample A or test sample B obtained by the sample preparation in carbon tetrachloride for ultrasonication, the power of the ultrasonic wave is 120W, the frequency is 50kHz, and the time is 4min;

[0085] (2) Weigh the mass m of the sa...

Embodiment 3

[0101] This embodiment provides a method for measuring the volume hydrogen content in high-purity aluminum or high-purity aluminum alloy. A high-purity aluminum ingot is selected as the sample to be tested, and the volume hydrogen content is about 0.15-0.2ppm. The method includes the following step:

[0102] (1) The sample to be tested is divided into sample A to be tested and sample B to be tested by turning, and then pre-treated respectively and put into sherwood oil for use;

[0103] Wherein, the pretreatment includes sample preparation and cleaning; the sample preparation is to machine the sample A and the sample B to be tested into a cylindrical shape with a diameter of 5 mm and a height of 20 mm by turning; The cleaning is to place the sample to be tested A or the sample to be tested B obtained by the sample preparation in carbon tetrachloride for ultrasonication, the power of the ultrasonic wave is 100W, the frequency is 40kHz, and the time is 5min;

[0104] (2) Weigh ...

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Abstract

The invention relates to a method for measuring the volume hydrogen content in high-purity aluminum or high-purity aluminum alloy. The method comprises the following steps: dividing a to-be-measured sample of the high-purity aluminum or high-purity aluminum alloy into a to-be-measured sample A and a to-be-measured sample B; putting the treated to-be-measured sample A into a hydrogen determinator for surface hydrogen determination, and putting the treated to-be-measured sample B into the hydrogen determinator for surface hydrogen and volume hydrogen determination; and finally, subtracting the measurement result of the to-be-measured sample B from the measurement result of the to-be-measured sample A to obtain the volume hydrogen content in the to-be-measured sample of the high-purity aluminum or high-purity aluminum alloy. According to the method, aiming at the interference problem of surface hydrogen, the sample to be detected is divided into two parts, and the two parts are separatelydetected and subtracted, so that the volume hydrogen can be deducted, the blank values from carrier gas, instruments and crucibles can be reduced, and the content of the volume hydrogen in high-purity aluminum or high-purity aluminum alloy can be accurately determined.

Description

technical field [0001] The invention relates to the technical field of analysis and detection methods, in particular to a method for measuring volume hydrogen content in high-purity aluminum or high-purity aluminum alloy. Background technique [0002] High-purity aluminum and high-purity aluminum alloys have become one of the essential raw materials for the electronic information industry due to their extremely high purity, excellent electrical conductivity, ease of etching and resistance to electromigration. Among them, high-purity aluminum and high-purity aluminum alloys are often used for magnetron sputtering to generate sputtered aluminum films that are closely related to the quality of electronic information products. However, the gas contained in high-purity aluminum and high-purity aluminum alloy has a great influence on the quality of sputtered aluminum film. Because during the magnetron sputtering process, the gas will cause abnormal plasma discharge and ejection o...

Claims

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Application Information

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IPC IPC(8): G01N25/20G01N1/28G01N1/34
CPCG01N25/20G01N1/286G01N1/34G01N1/28
Inventor 姚力军边逸军潘杰王学泽周佳焕
Owner KONFOONG MATERIALS INTERNATIONAL CO LTD
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