Preparation of Tungsten Boride Powder by High-Temperature Solid-State Reaction

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	Preparation of Tungsten Boride Powder by High-Temperature Solid-State Reaction
	Cao Xiaozhou 1; Xue Xiangxin 1; Yang He 1; Li Haitao 2; Wang Huiying 1; Shi Lihan 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2014
卷号	43 期号:8 页码:1987-1990
关键词	CRYSTALS tungsten boride solid-state reaction microstructure
ISSN号	1002-185X
其他题名	Preparation of Tungsten Boride Powder by High-Temperature Solid-State Reaction
英文摘要	Through a solid-state reaction, tungsten borides were synthesized from boron and tungsten powders under vacuum in a graphite element furnace. In particular, the effects of B/W mole ratio, the temperature and the holding time on the products were investigated. The phase composition and morphology of the product were further analyzed by XRD and SEM, respectively. The result shows that the main products are WB and WB2 when the B/W ratio is controlled to be 2; however, when the ratio is increased to 2.5 above 1400 degrees C WB2 of high purity can be obtained. With the B/W ratio more than 4 the main products are mixed by both WB2 and WB4. The relative content of WB4 is increased with prolonging the annealing time. The model of WB4 formation process has been discussed.
语种	英语
CSCD记录号	CSCD:5234870
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/146587]
专题	金属研究所_中国科学院金属研究所
作者单位	1.东北大学 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Cao Xiaozhou,Xue Xiangxin,Yang He,et al. Preparation of Tungsten Boride Powder by High-Temperature Solid-State Reaction[J]. RARE METAL MATERIALS AND ENGINEERING,2014,43(8):1987-1990.
APA	Cao Xiaozhou,Xue Xiangxin,Yang He,Li Haitao,Wang Huiying,&Shi Lihan.(2014).Preparation of Tungsten Boride Powder by High-Temperature Solid-State Reaction.RARE METAL MATERIALS AND ENGINEERING,43(8),1987-1990.
MLA	Cao Xiaozhou,et al."Preparation of Tungsten Boride Powder by High-Temperature Solid-State Reaction".RARE METAL MATERIALS AND ENGINEERING 43.8(2014):1987-1990.