Thermal properties of Ca-doped stabilized zirconia under high pressure and high temperature
Thermal properties of Ca-doped stabilized zirconia under high pressure and high temperature
复制标题
Ca掺杂稳定氧化锆高压高温热性能
DOI：
10.1016/j.ceramint.2014.04.101
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
Hiratoko T.;et al.
采用脉冲瞬态法在5.3GPa和700K下同时测量了Ca掺杂稳定氧化锆的热扩散系数κ和电导率λ。从κ和λ，还推导出热容C。在5.3GPa下，κ和λ的温度依赖性很小，可能是由于氧离子传导引起的。目前的数据是特别有用的设计中的Kawai型装置，其中钙掺杂的稳定氧化锆已被频繁地用作加热器周围的热绝缘体的高压单元。
The thermal diffusivity,κ, and conductivity,λ, of Ca-doped stabilized zirconia were simultaneously measured up to 5.3 GPa and 700 K employing the pulse transient method. Fromκandλ, heat capacity,C, was also derived. The temperature dependences ofκandλat 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.