以聚碳硅烷(PCS)包覆B4C粉为原料，分别在300℃、50 MPa下温压成型和800MPa下冷等静压成型，而后将压坯置于氩气气氛保护下在1 200℃保温2 h，再在1 800～2 000℃下真空烧结3 h，原位反应制备出SiC/B4C复相陶瓷；研究了它的相对密度、物相组成和显微结构。结果表明：温压工艺比冷等静压工艺能得到更高密度的复相陶瓷；合15％SoC的温压压坯在烧结3 h后得到复相陶瓷的相对密度大于93％；复相陶瓷由B4C和SiC相组成，SiC相均匀分布在B4C颗粒界面上。
参考文献
| [1] | Shmuel Hayun;Amir Weizmann;Moshe P. Dariel .The Effect of Particle Size Distribution on the Microstructure and the Mechanical Properties of Boron Carbide-Based Reaction-Bonded Composites[J].International journal of applied ceramic technology,2009(4):492-500. |
| [2] | royuki Miyazaki;You Zhou;Hideki Hyuga .Microstructure of boron carbide pressureless sintered in an Ar atmosphere containing gaseous metal species[J].Journal of the European Ceramic Society,2010(4):999-1005. |
| [3] | 李爱菊,尹衍升,甄玉花,师瑞霞,王磊.（SiC,TiB2）/B4C复合材料的烧结机理[J].复合材料学报,2004(04):129-133. |
| [4] | 丁硕,温广武,雷廷权,周玉.自生法制备纳米-微米颗粒增强B4C基复合材料[J].材料工程,2002(05):14-17,21. |
| [5] | 江涛,金志浩,杨建锋,乔冠军.B4C/BN纳米复合粉末的制备与显微结构的研究[J].稀有金属材料与工程,2009(z1):280-283. |
| [6] | Qian-Cheng Ma;Guo-Jun Zhang;Yan-Mei Kan .Effect of additives introduced by ball milling on sintering behavior and mechanical properties of hot-pressed B_4C ceramics[J].CERAMICS INTERNATIONAL,2010(1):167-171. |
| [7] | 丁硕,温广武,雷廷权,周玉.由聚碳硅烷生成纳米SiC颗粒增强B4C基复相陶瓷的结构与性能[J].无机材料学报,2002(05):1013-1018. |
| [8] | 周晓军,张国军,李耀刚,阚艳梅,王佩玲.以聚碳硅烷为先驱体制备ZrB2-SiC-C超高温陶瓷[J].稀有金属材料与工程,2007(z2):5-7. |
| [9] | A. Herzog;M. Thunemann;U. Vogt .Novel application of ceramic precursors for the fabrication of composites[J].Journal of the European Ceramic Society,2005(2/3):187-192. |
| [10] | Ha JS.;Lim CS.;Kim CS.;Cheong DS. .A new process for Al2O3/SiC nanocomposites by polycarbosilane infiltration[J].Materials Chemistry and Physics,2002(1/3):241-245. |
| [11] | 王骥洲,李俊杰,余煜玺,龚朝阳,程璇,张颖.聚碳硅烷熔体的稳态流变性能[J].高分子材料科学与工程,2009(07):53-56. |
| [12] | Dusan Galusek;Jaroslav Sedlacek;Ralf Riedel .Al_2O_3-SiC composites prepared by warm pressing and sintering of an organosilicon polymer-coated alumina powder[J].Journal of the European Ceramic Society,2007(6):2385-2392. |
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%