Effect of polymer molecular weight variations on PZT slip for tape casting

被引:28
作者
Song, JK
Um, WS
Lee, HS
Kang, MS
Chung, KW
Park, JH
机构
[1] Korea Testing Lab, Mat Testing Team, Seoul 152053, South Korea
[2] Daejoo Fine Chem Co Ltd, Res & Dev Lab, Shihwa IND, Sihung, Kyunggi Do, South Korea
[3] Yonsei Univ, Dept Ceram Engn, Seoul 120749, South Korea
关键词
polymer additives; PZT; rheology; suspensions; tape casting;
D O I
10.1016/S0955-2219(99)00198-3
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
Ceramic slips were formulated based on the PZT/plasticized-polymer system. The total volume of polymer in slip was held constant, while the relative amount of plasticizer and binder was varied. Experiments were performed to elucidate the effects of the polymer molecular weight and its end-to-end distance on the properties of green sheet as well as on the rheological properties of casting slips. Tapes(thickness = 200 mu m) were cast from these slips and their properties were evaluated. The properties of polymers such as their average molecular weight(end-to-end distance) and molecular weight distribution had a dramatic effect both on slip rheology and green sheet properties. The optimum ratio of PVB to DPB for the PZT tape casting process was 75 : 25. The properties of green sheet agreed well to viscosity behavior of PZT slip. And the burn-out behaviors of each green sheet were quite different. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:685 / 688
页数:4
相关论文
共 7 条
[1]  
BRAUN L, 1985, AM CERAM SOC BULL, V64, P727
[2]  
LANGE FF, 1989, J AM CERAM SOC, V72, P1
[3]  
LEWIS JA, 1993, MATER RES SOC SYMP P, V289, P117
[4]  
MISTLER RE, 1990, CERAM B, P69
[5]  
NIETO E, 1996, J MAT SCI MAT ELECT, V7, P2533
[6]  
RAHAMAN MN, 1995, CERAMIC PROCESSING S, P172
[7]  
SACKS MD, 1986, CERAMIC POWDER SCI A, V21, P175