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材料工程  2004, Vol. 0 Issue (11): 45-49    
  研究与应用 本期目录 | 过刊浏览 | 高级检索 |
复合电镀法制备透射电镜试样
闫时建, 田文怀
北京科技大学材料物理与化学系, 北京, 10008
Preparing TEM Thin Foil by Composite Electroplating
YAN Shi-jian, TIAN Wen-huai
Department of Materials Physics & Chemistry, University of Science & Technology Beijing, Beijing, 100083, China
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摘要 提出了一种方便实用的制备透射电镜粉末样品的方法,先通过复合电镀工艺把粉末包埋在金属镀层中,再通过电解双喷或离子减薄金属镀层,同时使粉末颗粒得到减薄.以不导电的LiCoO2和导电的WC两种无机非金属颗粒为例,指出了为保证颗粒包埋得足够致密和镀层中颗粒含量足够多所应选择的电流密度,为使镀层有一定的韧脆性结合所应选择的电镀液的pH值,及为把尽量小的颗粒包埋进镀层中所应选择的搅拌制度.
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关键词 复合电镀粉末颗粒透射电镜试样    
Abstract:A convenient and practical technique to prepare TEM thin foil containing particles have been presented. First, particles were entrapped into copper electroplating coat by composite electroplating. Second, the composite coating was thinned by twin-jet electropolishing or ion-thinning, then the particles in it were thinned simultaneousely. In this study nonconducting LiCoO2 and conducting WC were entrapped. Select proper current density to obtain composite coating in which the particles were as many as possible and were entrapped tightly. Select proper pH-value of electrolyte to obtain composite coating which had moderate brittleness. Select proper stirring velocity to entrap smaller particles into composite coating.
Key wordscomposite electroplating    particle    TEM thin foil
收稿日期: 2004-04-29      出版日期: 2004-11-20
中图分类号:  TQ153  
  TG11.23  
作者简介: 闫时建(1971- ),男,博士研究生,主要从事用电子显微镜研究金属化合物晶体结构方面的研究.联系地址:北京科技大学材料物理与化学系(100083).
引用本文:   
闫时建, 田文怀. 复合电镀法制备透射电镜试样[J]. 材料工程, 2004, 0(11): 45-49.
YAN Shi-jian, TIAN Wen-huai. Preparing TEM Thin Foil by Composite Electroplating. Journal of Materials Engineering, 2004, 0(11): 45-49.
链接本文:  
http://jme.biam.ac.cn/new/CN/      或      http://jme.biam.ac.cn/new/CN/Y2004/V0/I11/45
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