RHEOLOGY AND CONSOLIDATION OF AQUEOUS SUSPENSIONS WITH NANOMETER-SIZED BATI1-XZRXO3 POWDERS

被引：10

作者：

HIRATA, Y

OZAKI, T

机构：

[1] Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University, Kagoshima, 890

来源：

MATERIALS LETTERS | 1992年 / 15卷 / 1-2期

关键词：

D O I：

10.1016/0167-577X(92)90007-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rheological behavior of polyacrylic ammonium-containing aqueous suspensions of nanometer-sized BaTi1-xZrxO3 (x=0-0.2) powders was analyzed through the power law equation S=K(gamma)n, where S is the shear stress, K the consistency index, gamma the shear rate and n a constant indicating the departure from Newtonian behavior. The critical solid content for colloidal solids at n=0 was estimated to be 46-48 vol% from apparent viscosity analysis. The dried BaTiO3 compacts with green density of 55-60% TD could be densified to a relative density of 95-99% at 1200-1300-degrees-C.

引用

页码：31 / 34

页数：4

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