Aqueous processing and mechanical properties of PLZT green tapes

被引：52

作者：

Feng, JH ^{[1
]}

Dogan, F ^{[1
]}

机构：

[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 283卷 / 1-2期

关键词：

tape casting; lanthanum-modified lead zirconate titanatate (PLZT); poly(vinyl alcohol) (PVA) binder; plasticizer; colloidal processing; mechanical properties;

D O I：

10.1016/S0921-5093(00)00701-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Aqueous tape casting of lanthanum-modified lead zirconate titanate (PLZT) was performed using commercial poly(vinyl alcohol) (PVA) binders and various plasticizers. Colloidal properties of PLZT suspensions containing only polyelectrolyte dispersant were characterized by zeta potential. conductivity, and viscosity measurements. The effects of molecular weight as well as chemical structures of plasticizers and binders on green rapes were investigated by tensile resting. The rapes made from low molecular weight plasticizers showed higher plasticity, and glycerol was found to be the most effective plasticizer for PVA. Strong hydrogen bonding in high hydrolysis PVAs led to green tapes with high strength and high bulk density, but caused deformation of the tapes after drying. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：56 / 64

页数：9

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