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| 自蔓延高温合成Ti3AlC2陶瓷材料 | |
| 引用本文： | 封小鹏,陈秀娟,张鹏林,史鉴,高恒蛟,高君玲.自蔓延高温合成Ti3AlC2陶瓷材料[J].粉末冶金材料科学与工程,2011,16(5):736-741. |
| 作者姓名： | 封小鹏 陈秀娟 张鹏林 史鉴 高恒蛟 高君玲 |
| 作者单位： | 1. 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050 2. 兰州理工大学机电工程学院,兰州,730050 3. 天津电力建设公司,天津,300000 |
| 基金项目： | 国家自然科学基金，甘肃省自然科学基金 |
| 摘 要： | 以Ti、Al、C、TiC粉末为原料,研究掺杂Si及Al含量对自蔓延高温合成Ti3AlC2的影响,合成材料的X射线衍射仪(XRD)及扫描电子显微镜(SEM)分析结果表明:物质的量比n(Ti)∶n(Al)∶n(C)∶n(TiC)∶n(Si)=2∶1.2∶1∶0.9∶0.1的原始混合粉末,经50 MPa压力压制的压坯在空气中... |
| 关 键 词： | 自蔓延高温合成 Ti3AlC2 差热分析 显微组织 Si K-值法 |
Ti3AlC2 ceramics material fabricated by self-propagating high-temperature synthesis |
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| FENG Xiao-peng,CHEN Xiu-juan,ZHANG Peng-lin,SHI Jian,GAO Heng-jiao,GAO Jun-ling.Ti3AlC2 ceramics material fabricated by self-propagating high-temperature synthesis[J].materials science and engineering of powder metallurgy,2011,16(5):736-741. | |
| Authors: | FENG Xiao-peng CHEN Xiu-juan ZHANG Peng-lin SHI Jian GAO Heng-jiao GAO Jun-ling |
| Affiliation: | 1 (1.State Key Lab.of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology, Lanzhou 730050,China; 2.College of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou 730050,China; 3.Tianjin Electric Power Construction Company,Tianjin 300000,China) |
| Abstract: | Using Ti,Al,C,TiC powders as raw materials,the Ti3AlC2 cemmics material was prepared by self-propagating high-temperature synthesis doping with different content of Si and adjusting content of Al,and studied using X-ray diffraction and scanning electron microscopy.The results indicate that high purity of Ti3AlC2 was fabricated with n(Ti):n(Al):n(C):n(TiC):n(Si)=2:1.2:1:0.9:0.1 in molar ratio,which was pressed under a pressure of 50 MPa and synthesized in air atmosphere.The additive Si was uniformly distributed in the matrix.The synthetic product is in sheet shape and little grain structure,the average size of the plate sheet is about 10 μm.The proper addition of Si and the appropriate adjustment of Al are favorable to forming Ti3AlC2.Ti3AlC2 ceramics material with composition of n(Ti):n(Al):n(C): n(TiC):n(Si)=2:1.2:1:0.9:0.1,and a high purity of 97.75% has got. |
| Keywords: | SHS Ti3AlC2 DSC microstructure Si K-value estimation method |
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