陈哲,严有为

• 1:华中科技大学模具技术国家重点实验室
• 2:华中科技大学模具技术国家重点实验室 湖北武汉430074
• 3:湖北武汉430074

摘要(Abstract)：

以Nb、Si粉末为原料,采用放电等离子烧结(SPS)技术,原位合成Nb/Nb5Si3复合材料,研究了烧结温度对材料组织结构的影响。结果表明,Nb/Nb5Si3复合材料的反应SPS烧结存在一个临界烧结温度Tc=1400℃;当烧结温度低于Tc时,合成的材料致密性较低,且存在Nb3Si中间相;当烧结温度高于Tc时,可获得所需的Nb/Nb5Si3复合材料,而且随着烧结温度的提高,Nb颗粒尺寸变小,材料的致密性高达99.59%。

关键词(KeyWords)： 放电等离子烧结(SPS);Nb/Nb5Si3复合材料;烧结温度;微观结构

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50276023)

作者(Author): 陈哲,严有为

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