Fabrication of functionally graded SiAlON ceramics by tape casting

被引:27
作者
Acikbas, Nurcan Calis
Suvaci, Ender
Mandal, Hasan
机构
[1] Anadolu Univ, Dept Mat Sci & Engn, TR-26480 Eskisehir, Turkey
[2] MDA Adv Ceram Ltd, TR-26110 Eskisehir, Turkey
关键词
GRADIENT MATERIALS; SLIP ADDITIVES; TRANSFORMATION; TECHNOLOGY;
D O I
10.1111/j.1551-2916.2006.01059.x
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
Functionally graded SiAlON ceramics (FG-SiAlONs) were successfully prepared by the tape casting and lamination approach. Non-aqueous SiAlON slurries with five different alpha to beta-SiAlON ratios (85 alpha:15 beta, 70 alpha:30 beta, 55 alpha:45 beta, 40 alpha:60 beta, and 25 alpha:75 beta) were prepared by a 66 methyl ethyl ketone/34 ethanol (vol%) mixture. Phase and microstructure analyses incorporation with hardness measurements clearly show that the FG-SiAlONs, prepared by tape casting, exhibit a continuous and gradual change in composition and hardness. Thus, the tape casting approach is a viable method to produce FG-SiAlONs with a precisely controlled composition, and subsequently properties, as a function of position.
引用
收藏
页码:3255 / 3257
页数:3
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