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	Synthesis of ultra-fine and high-pure zirconium diboride powders using solution-based processing
	Wang, Chang-An ; Wang, Hailong ; Yu, Lei ; Huang, Yong
	2010-05-10 ; 2010-05-10
会议名称	PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3 ; 6th Pacific Rim International Conference on Advanced Materials and Processing ; Cheju Isl, SOUTH KOREA ; Web of Science ; INSPEC
关键词	zirconium diboride powder synthesis carborthermal reduction boronization solution-based processing HIGH-TEMPERATURE SYNTHESIS MICROSTRUCTURE PRECURSORS ZRB2 Materials Science, Multidisciplinary
中文摘要	Ultra-fine and high-pure zirconium diboride powders were prepared by carbothermal reduction boronization of zirconia/boron carbide/carbon mixtures. Fine-scale mixing of the reactants was achieved by solution-based processing in which zirconium oxychloride (ZrOCl2 center dot 8H(2)O) as the zirconia-bearing precursor was precipitated in the suspension of boron carbide (B4C) and carbon powders in water. The carbothermal reduction boronization reaction was substantially completed at relatively low temperatures (< 1600 degrees C) and the resulting products (ZrB2 powders) had small average grain sizes (1 similar to 2 mu m) and high purity (>99.6 wt%). The experiments indicated that excessive B4C and C were necessary during the carbothermal reduction boronization because of volatilization of boron and carbon elements. The effects of temperature and holding time on the synthesis of ZrB2 powders were also discussed.
会议录出版者	TRANS TECH PUBLICATIONS LTD ; STAFA-ZURICH ; LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18415]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Chang-An,Wang, Hailong,Yu, Lei,et al. Synthesis of ultra-fine and high-pure zirconium diboride powders using solution-based processing[C]. 见:PRICM 6: SIXTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-3, 6th Pacific Rim International Conference on Advanced Materials and Processing, Cheju Isl, SOUTH KOREA, Web of Science, INSPEC.

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