Sialon结合SiC复合材料的制备与性能

无机材料学报, 1997, 12(6): 814-818.

Sialon结合SiC复合材料的制备与性能

都兴红 , 隋智通 , 张广荣 , 张伟民

东北大学材料与冶金学院

沈阳110006

School of Materials and Metallurgy

Northeastern University Shenyang 110006 China

关键词： Sialon结合SiC , carbothemal reduction and nitriding reaction , sintering , mechanical and thermal properties

Preperation and Properties of Sialon Bonded SiC Material

DU Xinghong , SUI Zhitong , ZHANG Guangrong , ZHANG Weimin

Keywords： Sialon bonded SiC , 碳热还原氮化反应 , 烧结 , 机械及热力学性能

利用天然高岭土，通过碳热还原氮化法合成β-Sialon（Si₃Al₃O₃N₅）粉体，并制备出Sialon结合SiC复合材料，同时测定该材料的机械性能和热力学性能，Sialon结合SiC复合材料可在1550～1640℃烧结，烧结体的体积密度可达2．26g／cm³，三点抗弯强度42．0MPa，1200℃恒温20min后，经15℃冷水淬冷10次仍保持原有强度，1350℃空气流中灼烧失重率低于0．035％／cm²．

β-sialon powders (Si_6-z Al_zO_zN_8-z with z=3.0) were synthesized by carbothermal reductionand nitriding reaction. A sample of sialon bonded SiC was sintered at 1580～1640℃. Bulk densityof the sintered body was 2.26g/cm³, three pomt bending strength was 42.0MPa. The bendingstrength was still remained when quenching the sintered body at 1200℃ to cold water (15℃) 10times. Weight loss in flowing air at 1350℃ was less than 0.035%cm^-2.

参考文献

[1]

Yama Y O, Kamigaito O. Jpn. J. Appl. Phys., 1971, 10: 1637.
2 Jack K H, Wilson W I. Nature Phy. Sci., 1972, 238: 28.
3 Jack K H. J. Mater. Sci., 1976, 11: 35.
4 坂口雅幸, 耐火物, 1994, 46: 35.
5 Jee J G, Cutler I B. Am. ceram. Soc. Bull., 1979, 58: 869.
6 Mukerji J, Bandyopadhyay S. Adv. Ceram. Mater., 1988, 3: 369.
7 Narciso F J, Linares-Solano A, Rodriguez-Rei noso F. J. Mater. Res., 1995, 10: 727.
8 Cho Y W, Charles J A. Mater. Sci. Tech., 1991, 5: 339.
9 梁英教等. 物理化学数据手册. 沈阳: 东北工学院出版社, 1992.
10 Abe H. Engineering. Gihodo Co., Lid., Japan. 1984.
11 Takayodhi I, Teizo H, In: Shinroku Saito ed. Five Ceramics. Tokyo: Elsevier Science Publishing Co. 1988. 188.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网