Optimization of the Processing of 8-YSZ Powder by Powder Injection Molding for SOFC Electrolytes

被引：30

作者：

Jardiel, Teresa ^{[1
]}

Eugenia Sotomayor, Maria ^{[1
]}

Levenfeld, Belen ^{[1
]}

Varez, Alejandro ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dept Mat Sci & Engn, Leganes 28911, Spain

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2008年 / 5卷 / 06期

关键词：

D O I：

10.1111/j.1744-7402.2008.02286.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：

The development of a new multicomponent thermoplastic binder system for injection molding of yttria-stabilized zirconia (8-YSZ) bars based in polypropylene and paraffin wax (PW) is presented in this paper. The surface coating of YSZ powder with stearic acid in a high-performance dispersing instrument reduced the viscosity of the feedstock by one order of magnitude with respect to a feedstock with the same composition and uncoated powder. This fact allowed us to obtain a feedstock with a viscosity curve more suitable for the injection process without requiring high proportions of PW in the binder composition. The density of the samples was > 98% and the conductivity of sintered parts are comparable to those of samples uniaxially compacted, around 0.10 S/cm at 900 degrees C.

引用

页码：574 / 581

页数：8

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