采用钛、硅、碳单质粉为原料,再添加少量的铝粉作为反应助剂,通过高温自蔓延合成高纯的Ti3SiC2粉体;采用XRD和SEM等研究了合成产物的物相组成和显微结构,通过K-值法估算了产物中Ti3SiC2的含量.结果表明:铝元素的加入显著地促进了Ti3SiC2的合成,铝的加入量对Ti3SiC2的形成有很大的影响,过多或过少都不利于提高合成产物中Ti3SiC2的含量;以钛、硅、碳、铝物质的量比为3∶1.5∶2∶0.2的混合粉为原料合成的产物中Ti3SiC2质量分数最高,达93.6％.
参考文献
| [1] | Michel W.Barsoum .The M_(N+1)AX_N Phases: A new Class of solids; Thermodynamically Stable Nanolaminates[J].Progress in Solid State Chemistry,2000(1/4):201-281. |
| [2] | 张海平,王守仁,郭培全.TiAlN基薄膜的研究进展[J].机械工程材料,2013(04):1-5. |
| [3] | 赵永生,李伟,刘平,马凤仓,刘新宽,陈小红,何代华.TiSiN纳米复合结构涂层的研究进展[J].机械工程材料,2013(06):6-10,38. |
| [4] | 吕振林,李阳,肖琪聃.反应熔渗烧结法制备Ti3SiC2材料及其抗弯强度[J].机械工程材料,2011(11):62-65,102. |
| [5] | Yong Zou;ZhengMing Sun;Shuji Tada .Effect of liquid reaction on the synthesis of Ti_3SiC_2 powder[J].CERAMICS INTERNATIONAL,2008(1):119-123. |
| [6] | SUN Zheng-ming;ZOU Yong;TADA S et al.Effect of Al addition on pressureless reactive sintering of Ti3SiC2[J].Scripta Materlia,2006,55(11):1011-1014. |
| [7] | Lis J.;Rudnik T.;Wegrzyn Z.;Pampuch R. .REACTION SINTERING PHENOMENA OF SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS-DERIVED CERAMIC POWDERS IN THE TI-SI-C SYSTEM[J].Solid state ionics,1997(1):59-64. |
| [8] | Goesmann F.;Schmid-Fetzer R.;Wenzel R. .Preparation of Ti3SiC2 by electron-beam-ignited solid-state reaction[J].Journal of the American Ceramic Society,1998(11):3025-3028. |
| [9] | KOMARENKO K;CLARKE D E .Synthesis of Ti3SiC2 based materials using microwave-initiated SHS[J].Ceramic Engineer ing Science Process,1994,15(05):1028-1035. |
| [10] | YEH C L;SHEN Y G .Effects of TiC Addition on Formation of TiaSiC2 by Self-propagating high temperature synthesis[J].Journal of Alloys and Compounds,2008,458(1 2):286-291. |
| [11] | 王晓峰,李建伟,曹钦存.Ti-Si-C三元体系自蔓延高温合成的反应热力学研究[J].粉末冶金技术,2008(04):286-290. |
| [12] | 李建伟,肖国庆,王晓峰.自蔓延高温合成层状Ti3SiC2陶瓷的显微组织演变[J].中国陶瓷,2007(09):30-32,16. |
| [13] | 路金蓉,周洋,孙建军,李世波,黄振莺,翟洪祥.高纯Ti3SiC2的合成及其反应机理[J].机械工程材料,2011(11):51-53,108. |
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