High-strength porous YSZ ceramics fabricated by TBA-based gelcasting with high solid loading slurry

被引：0

作者：

Zhou, Jun ^{[1
]}

Wang, Chang-an ^{[1
]}

Yao, Shenglian ^{[1
]}

Dong, Yanhao ^{[1
]}

Huang, Yong ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS VII, PTS 1 AND 2 | 2012年 / 512-515卷

关键词：

gelcasting; TBA-based slurry; high solid loading; porous YSZ ceramics; compressive strength; thermal conductivity; YTTRIA-STABILIZED ZIRCONIA; SINTERING TEMPERATURE; THERMAL-CONDUCTIVITY; ALUMINA;

D O I：

10.4028/www.scientific.net/KEM.512-515.310

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Porous yttria-stabilized zirconia (YSZ) ceramics were fabricated by tert-butyl alcohol (TBA)-based gelcasting method using high solid loading slurry. Micron pores were generated by using low-cost carbon powder as the pore-forming agent. The TBA-based slurries of 50% solid loading appropriate for gelcasting were successfully prepared by using commercial dispersant BYK-163. The rheological behavior of the slurries were measured and discussed. The porosity, microstructure, compressive strength and thermal conductivity of the porous ceramics were tested and analyzed. The results show that this low-cost technology is significant for fabricating porous ceramics with both high compressive strength and low thermal conductivity.

引用

页码：310 / 314

页数：5

共 12 条

[1] Ceramics with ultra-low density fabricated by gelcasting: An unconventional view [J].