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Sample preparation method for normal EBSD analysis of electronic aluminum foil for electrolytic capacitor

A technology for electrolytic capacitors and electronic aluminum foils, which is used in material analysis, analysis materials, and instruments using wave/particle radiation. It can solve problems such as low quantitative accuracy, and achieve the effect of easy operation and improved product quality.

Inactive Publication Date: 2019-11-15
RUYUAN YAO AUTONOMOUS COUNTY DONGYANGGUANG FORMED FOIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defects and deficiencies of the existing electronic aluminum foil grain analysis method with low quantitative accuracy, and to provide a sample preparation method for EBSD analysis by the electronic aluminum foil method for electrolytic capacitors

Method used

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  • Sample preparation method for normal EBSD analysis of electronic aluminum foil for electrolytic capacitor
  • Sample preparation method for normal EBSD analysis of electronic aluminum foil for electrolytic capacitor
  • Sample preparation method for normal EBSD analysis of electronic aluminum foil for electrolytic capacitor

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Experimental program
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Effect test

Embodiment 1

[0036] A method for EBSD analysis of electronic aluminum foil for electrolytic capacitors, comprising the steps of:

[0037] S1. Sampling and inlay: Cut the sample into 30mm*50mm with a paper knife, and inlay and cure with epoxy resin;

[0038] S2. Mechanical polishing: Polish with 400#, 2000#, 5000# SiC water sandpaper in sequence, the polishing time is 3min, use water as cleaning agent, and finally use SiO with a particle size of 100nm 2 The polishing solution polishes the surface of the sample to be tested, and the polishing time is 5 minutes;

[0039] S3. Vibration polishing: Use a vibration polishing instrument for vibration polishing, and the polishing liquid is SiO with a particle size of 80nm 2 Polishing liquid, the time is 150min;

[0040] S4. Electropolishing: use ethanol: perchloric acid: hexanediol monobutyl ether = 8:1:1 polishing solution, current density 0.15A / cm 2 , voltage 30V, time 5S;

[0041] S5. EBSD analysis: dissolving the mounting resin with acetone...

Embodiment 2

[0044] A method for EBSD analysis of electronic aluminum foil for electrolytic capacitors, comprising the steps of:

[0045] S1. Sampling and inlay: Cut the sample into 30mm*50mm with a paper knife, and inlay and cure with epoxy resin;

[0046] S2. Mechanical polishing: Polish with 400#, 2000#, 5000# SiC water sandpaper in sequence, the polishing time is 3min, use water as cleaning agent, and finally use SiO with a particle size of 100nm 2 The polishing solution polishes the surface of the sample to be tested, and the polishing time is 8 minutes;

[0047] S3. Vibration polishing: use a vibration polishing instrument for vibration polishing, and the polishing liquid is SiO with a particle size of 70nm 2 Polishing liquid, the time is 150min;

[0048] S4. Electropolishing: use ethanol: perchloric acid: hexanediol monobutyl ether = 8:1:1 polishing solution, current density 0.25A / cm 2 , voltage 30V, time 8S;

[0049] S5. EBSD analysis: dissolving the mounting resin with acetone...

Embodiment 3

[0052] A method for EBSD analysis of electronic aluminum foil for electrolytic capacitors, comprising the steps of:

[0053] S1. Sampling and inlay: Cut the sample into 30mm*50mm with a paper knife, and inlay and cure with epoxy resin;

[0054] S2. Mechanical polishing: Polish with 400#, 2000#, 5000# SiC water sandpaper in sequence, the polishing time is 5min, use water as cleaning agent, and finally use SiO with a particle size of 100nm 2 The polishing solution polishes the surface of the sample to be tested, and the polishing time is 10 minutes;

[0055] S3. Vibration polishing: use a vibration polishing instrument for vibration polishing, and the polishing liquid is SiO with a particle size of 60nm 2 Polishing liquid, the time is 180min;

[0056] S4. Electropolishing: use ethanol: perchloric acid: hexanediol monobutyl ether = 8:1:1 polishing solution, current density 0.35A / cm 2 , voltage 30V, time 8S;

[0057] S5. EBSD analysis: Dissolve the mounting resin with acetone ...

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Abstract

The invention provides a sample preparation method for normal EBSD analysis of an electronic aluminum foil for an electrolytic capacitor. The sample preparation method comprises the following steps of: sampling and inlaying; mechanical polishing; vibration polishing; electrolytic polishing; and resin dissolving. The method of the invention can obtain a high-quality sample test surface meeting therequirements of EBSD analysis conveniently, quickly and accurately, and the qualified rate of samples can reach more than 90-98%, so that the method is suitable for the detection and analysis of normal plane grains of the electronic aluminum foil for the electrolytic capacitor, lays a foundation for the study of the correlation between grain orientation, grain boundary characteristics, long and short corrosion holes and the specific volume of corrosion foils, and provides support for the study of the relationship between the crystal properties of the electronic aluminum foil for the electrolytic capacitor and the comprehensive performance of products.

Description

technical field [0001] The invention relates to the technical field of detection and analysis of electronic aluminum foil, in particular to a sample preparation method for EBSD analysis of electronic aluminum foil used in electrolytic capacitors. Background technique [0002] Electronic light foil is a high-end aluminum foil, which is mainly used for aluminum electrolytic capacitors, which are important components in the electronics industry. With the rapid development of the electronics industry, the performance and integration of electromechanical products are getting higher and higher, and the requirements for electronic components are also increasing, and higher requirements are also put forward for electronic aluminum foil. During the corrosion process of electronic aluminum foil, with the growth of holes, it will encounter matrix defects such as vacancies, dislocations, impurities and grain boundaries. These defects will obviously affect the growth of holes, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/2005G01N23/203
CPCG01N23/2005G01N23/203G01N2223/053G01N2223/102G01N2223/646
Inventor 汪战胜陈锦雄罗向军汪启桥
Owner RUYUAN YAO AUTONOMOUS COUNTY DONGYANGGUANG FORMED FOIL CO LTD
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