采用Ti,Al和C元素粉末为反应物原料,通过机械合金化法成功地制备出高含量三元碳化合物Ti3AlC2陶瓷粉体.按Ti3AlC2化学计量比为起始反应原料配比(Ti∶Al∶C=3∶1∶2)的元素混合粉末,经3 h的机械合金化后,Ti、Al和C单质混合粉末发生化学反应,生成以Ti3AlC2为主晶相,并含有少量TiC的混合粉体和小块体;粉体中Ti3AlC2的含量达到83%(质量分数,下同).产物合成的原因是在Ti-Al-C体系中发生了一种机械诱发自蔓延反应.
参考文献
[1] | Barsoum M W .[J].Progress in Solid State Chemistry,2000,28:201. |
[2] | Pietzka M A;Schuster J C .[J].Journal of Phase Equilibria,1994,15(04):392. |
[3] | Myhra S.;Barsoum MW.;Crossley JAA. .Crystal-chemistry of the Ti3AlC2 and Ti4AlN3 layered carbide/nitride phases - characterization by XPS[J].The journal of physics and chemistry of solids,2001(4):811-817. |
[4] | Tzenov N V;Barsoum M W .[J].Journal of the American Ceramic Society,2000,83(04):825. |
[5] | 梅炳初,徐学文,朱教群,刘俊.热压烧结Ti3AlC2材料的制备、结构与性能研究[J].稀有金属材料与工程,2005(05):684-687. |
[6] | Wang X H;Zhou Y C .[J].Journal of Materials Chemistry,2002,12:455. |
[7] | Michal Li;Jan Puszynski;Jerzy Lis .[J].Journal of the American Ceramic Society,2001,84(12):3051. |
[8] | 郭俊明,陈克新,刘光华,周和平,宁晓山.放电等离子(SPS)快速烧结可加工陶瓷Ti3AlC2[J].稀有金属材料与工程,2005(01):132-134. |
[9] | Wang C A;Zhou A G et al.[J].Powder Diffraction,2005,20(03):218. |
[10] | Takacs L .[J].Progress in Materials Science,2002,47:355. |
[11] | Li, SB;Zhai, HX .Synthesis and reaction mechanism of Ti3SiC2 by mechanical alloying of elemental Ti, Si, and C powders[J].Journal of the American Ceramic Society,2005(8):2092-2098. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%