注凝成型制备ZTA复相陶瓷

复合材料学报, 2004, 21(6): 125-129. doi: 10.3321/j.issn:1000-3851.2004.06.022

注凝成型制备ZTA复相陶瓷

焦宝祥 ^1, , 李纯成 ^2, , 丘泰 ^3, , 沈春英 ^4,

1.南京工业大学,材料学院,南京,210009;盐城工学院,材料系,盐城,224003

2.南京工业大学,材料学院,南京,210009

3.南京工业大学,材料学院,南京,210009

4.南京工业大学,材料学院,南京,210009

基金项目: 江苏省高技术研究发展计划项目(BG2002025)

关键词：复相陶瓷 , 注凝成型 , 粘度 , 力学性能 , 显微结构

Al2O3-ZrO2 COMPOSITES PREPARED BY GELCASTING

讨论了pH值、分散剂添加量、ZrO2(3Y)含量和固相体积分数对氧化锆增韧氧化铝(Zirconia toughened alumina, ZTA)陶瓷注凝成型浆料粘度的影响,研究了注凝成型的烧结样品的性能和显微结构.结果表明,当pH值为8.5、分散剂添加量为0.9%时,可以制备固相体积分数达55%的低粘度ZTA(20%ZrO2)悬浮体.高固相悬浮体制备的烧结试样具有结构致密、ZrO2分布较均匀和t-ZrO2含量高等特征,其强度和断裂韧性分别达631.5 Mpa和7.64 Mpa·m1/2.

参考文献

[1]	谢志鹏,李建保,张锐,等. Ce-Y-ZTA复相陶瓷的微波烧结[J]. 复合材料学报,1998,15(2):1-7.Xie Zhipeng, Li Jianbao, Zhang Rui, et al. Microwave sintering of Ce-Y-ZTA composite [J]. Acta Mater Compos Sinica (in Chinese), 1998, 15(2):1-7.
[2]	高家化,沈志坚,丁子上. 陶瓷纳米基复合材料[J]. 复合材料学报,1994,11(1):45-52.Gao Jiahua, Shen Zhijian, Ding Zishang. Ceramic-matrix nanocomposite[J]. Acta Mater Compos Sinica (in Chinese), 1994,11(1):45-52.
[3]	Young A C, Omatete O O, Janney M A, et al. Gelcasting of alumina [J]. J Am Ceram Soc,1991, 74(3) : 612-618.
[4]	Gillssen R, Erauw J P, Smolders, et al. Gelcasting--A near net shape technique [J]. Mater and Des, 2000, 21: 251-257.
[5]	Ha C G, Jung Y G, Kim J W, et al. Effect of particle size on gelcasting process and green properties in alumina[J]. Mater Sci and Eng, 2002, A337: 212-221.
[6]	Zhou Longjie, Huang Yong, Xie Zhipeng, et al. Preparation of Si3N4 ceramics with high strength and high reliability via a processing [J]. J Eur Ceram Soc, 2002, 22: 1347-1355.
[7]	向军辉,黄勇,谢志鹏,等. Al2O3凝胶固化成型的影响因素[J]. 无机材料学报,2001,16(6):1101-1107.Xing Junhui, Huang Yong, Xie Zhipeng, et al. Influencing factors on Al2O3 instant-solidifying forming process[J]. J Inorg Mater(in Chinese), 2001,16(6):1101-1107.
[8]	张灿英,戚凭,李镇江,等. 氧化铝基陶瓷凝胶注模成型工艺的研究[J]. 无机材料学报,1999,14(4):623-628.Zhang Canying, Qi Ping, Li Zhenjiang, et al. Study on gelcasting of Al2O3-based ceramics[J]. J Inorg Mater(in Chinese), 1999,14(4):623-628.
[9]	孙静,高濂,郭景坤. 二元复合体系Y-ZTP/α-Al2O3浆料的流变性研究[J]. 硅酸盐学报, 1998,26(5):662-666.Sun Jing, Gao Lian, Guo Jingkun. Study on rheological properties and gelcasting with Y-TZP / α-Al2O3[J]. J Chin Ceram Soc (in Chinese), 1998,26(5):662-666.
[10]	王浚,高濂. 高固相体积分数Y-ZTP 悬浮液的流变学特性性[J]. 无机材料学报,1999,14(4):651-655.Wang Jun, Gao Lian. Rheology of concentrated Y-TZP aqueous suspensions [J]. J Inorg Mater (in Chinese), 1999,14(4):651-655.
[11]	孙静,高濂,郭景坤. 湿法成型中稳定浆料的制备[J]. 硅酸盐通报, 1999, 18(3):29-33.Sun Jing, Gao Lian, Guo Jingkun. The preparation of stable slurry in the wet forming process[J]. Bull Ceram Soc (in Chinese), 1999, 18(3): 29-33.

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

注凝成型制备ZTA复相陶瓷

Al2O3-ZrO2 COMPOSITES PREPARED BY GELCASTING

参考文献