自蔓延高温合成制备TiB<sub>2</sub>

自蔓延高温合成制备TiB₂

摘要: 采用Ti和B粉压坯,用电焊机作燃烧合成时的点火装置,利用燃烧合成方法制备TiB₂。用XRD、SEM技术对合成产物进行结构、组织分析。结果表明,用燃烧合成法在457.0℃~856.1℃之间可制备得到TiB₂。用自蔓延高温合成(SHS)制备TiB₂粉末,其粒度可达1~5μm。

Abstract: TiB₂ was produced by self-propagating High temperature synthesis(SHS) when raw material was powder(Ti,B) and the ignition equipment is a electric welding machine. The products were analysed by XRD, DTA and SEM techniques. The results were that TiB₂ was produced by self propagating high temperature synthesis when the process temperature was 457 0℃~856 1℃.