ULTRAMICROTOMY OF NANOCRYSTALLINE MATERIALS

被引：21

作者：

MCMAHON, G

MALIS, T

机构：

[1] CANADA CTR MINERAL & ENERGY TECHNOL,MET TECHNOL LABS,OTTAWA,ON K1A 0G1,CANADA

[2] UNIV SAARLAND,D-66041 SAARBRUCKEN,GERMANY

来源：

MICROSCOPY RESEARCH AND TECHNIQUE | 1995年 / 31卷 / 04期

关键词：

PREPARATION TECHNIQUE; ARTIFACTS; SECTIONING-INDUCED TEXTURE;

D O I：

10.1002/jemt.1070310403

中图分类号：

R602 [外科病理学、解剖学]; R32 [人体形态学];

学科分类号：

100101 ;

摘要：

The methodology and one of the first attempts to produce transmission electron microscopic (TEM) specimens of nanocrystalline metals, alloys and ceramics by ultramicrotomy are presented. Samples of the pure elements Co, Pd; alloys of Y-12 at.% Fe, Al-7 at.% Ag and W-30 at.% Ga; and ZnO ceramic, were found to section successfully to varying degrees. Advantages of sections prepared through ultramicrotomy over ion beam methods include extensive electron;transparent regions of uniform thickness and absence of ion beam damage. Typical artefacts were observed (knife marks, tearing, pull-out, shear lamellae, section curling, and anodic dissolution) but did not impede TEM analysis significantly. A potentially important effect observed was that of a texture development upon sectioning oft he Co and Pd samples. It is thought that this unusual phenomenon results from the extremely fine scale of the microstructure and the purity of the Co and Pd samples, and may be enhanced by frictional heating effects and the state of the knife edge. (C) 1995, Government of Canada.*

引用

页码：267 / 274

页数：8

共 17 条

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