| 烧结温度对合成Ti3SiC2材料的影响及反应机理的研究 |
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| 引用本文： | 王超,吕振林,周永欣,王玲玲.烧结温度对合成Ti3SiC2材料的影响及反应机理的研究[J].兵器材料科学与工程,2008,31(4):44-47. |
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| 作者姓名： | 王超 吕振林 周永欣 王玲玲 |
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| 作者单位： | 西安理工大学,材料科学与工程学院,陕西,西安,710048;西安理工大学,材料科学与工程学院,陕西,西安,710048;西安理工大学,材料科学与工程学院,陕西,西安,710048;西安理工大学,材料科学与工程学院,陕西,西安,710048 |
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| 摘 要： | 以Ti/Si/C为原料,采用反应烧结方法制备Ti3SiC2材料,并分析反应烧结机理。结果表明,以3Ti/1.2Si/2C为起始原料,烧结温度在1250~1300℃之间,可以得到Ti3SiC2含量90%以上的Ti3SiC2材料。Ti3SiC2的反应合成机理是固-液反应,即:Ti5Si3和β-Ti形成液相,液相再与TiC反应,进而合成Ti3SiC2。
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| 关 键 词： | 烧结温度 固-液反应 热力学分析 Ti3SiC2 反应机理 |
Effects of sintering temperature on the synthesis of Ti3SiC2 and study on reaction mechanism |
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| WANG Chao,LU Zhen-lin,ZHOU Yong-xin,WANG Ling-ling.Effects of sintering temperature on the synthesis of Ti3SiC2 and study on reaction mechanism[J].Ordnance Material Science and Engineering,2008,31(4):44-47. |
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| Authors: | WANG Chao LU Zhen-lin ZHOU Yong-xin WANG Ling-ling |
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| Abstract: | The Ti3SiC2 ceramic was prepared by reaction sintering with Ti/Si/C powder mixtures as raw material and the reaction mechanism was analyzed. The results show that bulk Ti3SiC2 ceramic with the amount of Ti3SiC2 over 90% could be obtained successfully by reaction sintering, 3Ti/1.2Si/2C ratio mixture powders are used as raw material and the sintering temperature is in the range of 1 250~1 300 °C. The reaction mechanism of Ti3SiC2 is solid-liquid reaction, i.e., the Ti3SiC2 phase is synthesized by the reaction of TiC phase with liquid phase,which results from reaction of Ti5Si3 with β-Ti phase. |
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| Keywords: | Ti3SiC2 |
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