Fabrication of high purity Ti₃SiC₂ from Ti/Si/C with the aids of Al by spark plasma sintering

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• 作者：Jianfeng Zhang ; Lianjun Wang ; Wan Jiang ; Lidong Chen
• 关键词：Titanium silicon carbide ; SPS ; Microstructure ; High purity
• 刊名：Journal of Alloys and Compounds
• 出版年：2007
• 出版时间：28 June 2007
• 年：2007
• 卷：437
• 期：1-2
• 页码：203-207
• 全文大小：981 K

文摘

Ti/Si/C powders were used to fabricate high purity Ti₃SiC₂ with the aids of Al by spark plasma sintering (SPS). The results showed that the dense Ti₃SiC₂ samples with <2 wt. % TiC could be rapidly synthesized from Ti/Si/C/Al mixtures at 1280 °C for 6–36 min. The sintering temperature and the sintering time was lower and shorter than that by hot isostatic pressing (HIP) or hot pressing (HP) from Ti/Si/C mixtures. The microstructures of Ti₃SiC₂ depend on the sintering temperature and holding times of SPS and can be controlled accordingly. The technological implication of this work is that, with the aids of Al, Ti/Si/C can be suggested to be the powder mixture to synthesize high purity Ti₃SiC₂ in addition to Ti/Si/TiC powder mixture.