| Ti-W-C体系燃烧合成产物颗粒形貌分析 |
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| 引用本文： | 李劲风,张昭,张鉴清. Ti-W-C体系燃烧合成产物颗粒形貌分析[J]. 粉末冶金技术, 2002, 20(2): 71-74 |
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| 作者姓名： | 李劲风 张昭 张鉴清 |
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| 作者单位： | 1. 浙江大学化学系,杭州,310027
2. 浙江大学化学系,杭州,310027中国科学院金属研究所腐蚀与防护国家重点实验室,沈阳,110016 |
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| 摘 要： | 研究了Ti-W-C体系燃烧合成产物相组成及颗粒及颗粒形貌特征。结果表明：W含量较低时，燃烧高温使燃烧前沿Ti粉熔化，能合成单相（Ti,W)C,且产物聚合颗粒致密，其组成晶粒生长完整，球磨后粉末粉度较粗，W含量增加，W与C反应不完全，TiC-WC固溶不充分，产物多晶聚合体颗粒疏松，球磨后粉末粒度较细。
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| 关 键 词： | Ti－W－C体系 燃烧合成 颗粒形貌 粉末 碳化物 |
| 修稿时间： | 2000-10-18 |
Study on Combustion Synthesized Particle Morphology of Ti-W-C System |
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| Li Jinfeng ),Zhang Zhao ),Zhang Jianqing ),) ). Study on Combustion Synthesized Particle Morphology of Ti-W-C System[J]. Powder Metallurgy Technology, 2002, 20(2): 71-74 |
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| Authors: | Li Jinfeng ) Zhang Zhao ) Zhang Jianqing ) ) ) |
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| Affiliation: | Li Jinfeng 1),Zhang Zhao 1),Zhang Jianqing 1),2) 1) |
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| Abstract: | The phase constitution and particle morphology of combustion synthesized product of Ti W C system were investigated.When W content was lower, Ti powder in combustion front was melted by high combustion temperature,single phased (Ti,W)C could be synthesized,polycrystal particle of the synthesized product had high density,grains grew completely and particle size of milled powder was relatively large.With W content increasing,reaction between W and C became incomplete,solid solution of WC and TiC was insufficient,the polycrystal particle was porous and particle size of the milled powder was decreased. |
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| Keywords: | Ti W C system combustion synthesis particle morphology |
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