期刊
CERAMICS INTERNATIONAL
卷 41, 期 4, 页码 5959-5966出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.01.032
关键词
Ethyl cellulose; 3-step recovery test; Recovery ratio; Screen-printing
Pastes of ceramic particles are used in many industrial applications such as in printed electronic products and solid oxide fuel cells. Ethyl cellulose (EC), a polymer component in the paste, is very useful to control the rheological properties of the pastes for screen printing. In this study, to prepare ceramic La0.6Sr0.4Ti0.3Fe0.7O3-delta (LSTF) pastes, EC was mixed with an organic solvent, ethylene glycol monobutyl ether acetate, and LSTF powder. The effects of EC and LSTF particle contents were investigated on the rheological properties of the pastes, using shear, stress, frequency-dependence, and a 3-step recovery tests. The recovery ratio of the pastes in the 3-step tests was found to depend strongly on their EC and LSTF particle contents, decreasing at higher contents due to the formation of a strong network. We also investigated the microstructure and surfaces of thick films fabricated through screen-printing, and confirmed that pastes with a low recovery ratio and high viscosity afford smooth surface profiles. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据