Thermal properties of Ca-doped stabilized zirconia under high pressure and high temperature

被引：9

作者：

Hiratoko, Tatsuya ^{[1
]}

Yoneda, Akira ^{[2
]}

Osako, Masahiro ^{[3
]}

机构：

[1] Kumamoto Univ, Grad Sch Sci & Technol, Kumamoto 8608555, Japan

[2] Okayama Univ, Inst Study Earths Interior, Misasa, Tottori 6820193, Japan

[3] Natl Museum Nat & Sci, Div Phys Sci, Tsukuba, Ibaraki 3050005, Japan

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 08期

基金：

日本学术振兴会;

关键词：

Thermal conductivity; Heat capacity; High pressure; High temperature; Zirconia; EXPANSION COEFFICIENTS; PHASE-RELATIONS; HEAT-CAPACITY; DIFFUSIVITY; GPA;

D O I：

10.1016/j.ceramint.2014.04.101

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 thermal diffusivity, kappa, and conductivity, lambda, of Ca-doped stabilized zirconia were simultaneously measured up to 5.3 GPa and 700 K employing the pulse transient method. From kappa and lambda, heat capacity, C, was also derived. The temperature dependences of kappa and lambda at 5.3 GPa were found to be very small, and may be due to oxygen ion conduction. The present data are especially useful for designing a high-pressure cell in a Kawai-type apparatus, where Ca-doped stabilized zirconia has been frequently used as thermal insulator around a heater. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：12471 / 12475

页数：5

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