Method for preparing glow discharge mass spectrometer analysis test sample
A technique for glow discharge mass spectrometry and sample analysis, which is used in the preparation of samples for testing, material analysis by electromagnetic means, and material analysis. Accuracy and other issues, to achieve the effect of clean surface, fast analysis speed and high density
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[0029] Embodiment 1 The ruthenium powder to be analyzed is loaded into the graphite mold coated with alumina, the inner diameter of the graphite mold is 30mm, and the method of vacuum hot pressing is adopted, and the ruthenium powder is pressurized and sintered at a temperature of 1300 ° C, and the applied The pressure is 40MPa. After the sintering is completed, the density of the obtained ruthenium block is measured by the Archimedes method, and the density can reach 99% of the theoretical density of ruthenium. The ruthenium blocks were turned into ruthenium samples with a diameter of 28 mm using a polycrystalline cubic boron nitride turning tool. The ruthenium samples were ultrasonically cleaned with acetone, ethanol and ultrapure water, respectively, and dried. Put the sample into the ElementGD block sample stage, and carry out pre-sputtering for a certain period of time. The easily contaminated Na, Fe, and Ca are used as targets. Data collection starts when the concentrat...
Example Embodiment
[0030] Example 2
[0031] The ruthenium powder to be analyzed is loaded into a graphite mold coated with zirconia, and the inner diameter of the graphite mold is 30 mm, and the ruthenium powder is pressurized and sintered at a temperature of 1000 ° C by the method of discharge plasma sintering, and the applied pressure is 20MPa. After the sintering is completed, the density of the obtained ruthenium block is measured by the Archimedes method, and the density can reach 95% of the theoretical density of ruthenium. The ruthenium blocks were turned into ruthenium samples with a diameter of 28 mm using a carbide turning tool. The ruthenium samples were ultrasonically cleaned with acetone, ethanol and ultrapure water, respectively, and dried. The samples were placed in the Element GD block sample stage and pre-sputtered for a certain period of time. Taking easily contaminated Na, Fe, and Ca as the target, start collecting data when the concentration is basically stable, record th...
Example Embodiment
[0032] Example 3
[0033] The ruthenium powder to be analyzed is loaded into a graphite mold coated with boron nitride, the inner diameter of the graphite mold is 30mm, and the method of direct current heating and sintering is adopted, and the ruthenium powder is pressurized and sintered at a temperature of 1200, and the applied pressure is 30MPa . After the sintering is completed, the density of the obtained ruthenium block is measured by the Archimedes method, and the density can reach 97% of the theoretical density of ruthenium. The ruthenium blocks were turned into ruthenium samples with a diameter of 28 mm using a diamond turning tool. The ruthenium samples were ultrasonically cleaned with acetone, ethanol and ultrapure water, respectively, and dried. The samples were placed in the Element GD block sample stage and pre-sputtered for a certain period of time. Taking easily contaminated Na, Fe, and Ca as the target, start collecting data when the concentration is basical...
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