Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 4    No. 2    June 1994

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MICROSTRUCTURES OF ULTRAFINE WC POWDERS
Sun Xiaohua; Wang Mingpu; Tu Yuanjun; Zeng Zhaoming; Hu Xiamei

Central South University of Technology; Changsha 410083

Abstract:The microstructures of ultrafine WC powders were studied by means of TEM and XRD. The results show that there exist highly densified stacking faults, dislocation networks and mosaicstructures in the ultrafine WC powders, and that the microstress in the crystallines is high. The mosaic structures' sizes determind by XRD obey the same changing law as the powder sizes determined by TEM observations,but the former ones are smaller than the latter ones. which is related with the stucking faults and mosaic structures in the powders.

 

Key words: tungsten carbide ultrafine powder micro-structures cemented carbide

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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