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投稿时间:2005-11-26
投稿时间:2005-11-26
中文摘要: 在封闭系统中,对纳米TiO2碳热还原氮化反应合成纳米晶Ti(C,N)固溶体粉末进行研究。结果表明,当以C/Ti值为2.7配料,氮气压力为0.005 MPa时,一定量纳米TiO2/纳米碳黑混合料在1600 ℃下保温4 h,可以合成晶粒尺寸为32 nm的球形Ti(C0.7,N0.3) 固溶体粉末。
中文关键词: 纳米TiO2 碳热还原氮化 Ti(C0.7,N0.3) XRD
Abstract:Preparation of nanocrystalline Ti(C,N) solid solution powders via carbothermal reduction nitridation reaction of nano TiO2 in close nitrogen atmosphere was investigated. The experiment results showed that, if the TiO2/carbon black mixtures with given weight and a C-to-Ti molar ratio of 2.7∶1 were isothermal treated for 4 hours at 1600 ℃ with nitrogen pressure of 0.005 MPa, spherical Ti(C0.7, N0.3) solid solution powders with 32 nm crystallite size can be synthesized.
文章编号:20070124 中图分类号: 文献标志码:
基金项目:四川省科技攻关项目资助(05GG009-020-03)
作者简介:
引用文本:
向道平,刘颖,高升吉.纳米TiO2碳热氮化制备纳米晶Ti(C0.7,N0.3)固溶体[J].工程科学与技术,2007,39(1):118-122.
.Preparation of Nanocrystalline Ti(C0.7,N0.3) Solid Solution via Carbothermal Reduction nitridation Reaction of Nano TiO2[J].Advanced Engineering Sciences,2007,39(1):118-122.
引用文本:
向道平,刘颖,高升吉.纳米TiO2碳热氮化制备纳米晶Ti(C0.7,N0.3)固溶体[J].工程科学与技术,2007,39(1):118-122.
.Preparation of Nanocrystalline Ti(C0.7,N0.3) Solid Solution via Carbothermal Reduction nitridation Reaction of Nano TiO2[J].Advanced Engineering Sciences,2007,39(1):118-122.