PREPARATION OF TUNGSTEN CARBIDES ON SILICA-EVIDENCE OF COUPLING EFFECTS DURING REDUCTION CARBURIZATION OF TUNGSTEN-OXIDE

被引：3
|
作者：
COLQUE, S [1 ]
GRANGE, P [1 ]
DELMON, B [1 ]
机构：
[1] UNIV CATHOLIQUE LOUVAIN,PL CROIX SUD 2-17,B-1348 LOUVAIN,BELGIUM
来源：
SOLID STATE IONICS | 1993年 / 63-5卷
关键词：
D O I：
10.1016/0167-2738(93)90094-J
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The preparation of highly dispersed carbide phases using WO3/SiO2 as a precursor is strongly influenced by the morphology of the solids. W2C is the only phase formed if WO3 is in strong interaction with silica, otherwise WC is also present. Coupling effects during reduction/carburization of tungsten oxide are observed.
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页码：122 / 127
页数：6
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