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

Tatsuya Hiratoko; Akira Yoneda; Masahiro Osako

doi:10.1016/j.ceramint.2014.04.101

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

Tatsuya Hiratoko, Akira Yoneda, Masahiro Osako

Institute for Planetary Materials

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

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. From κ and λ, heat capacity, C, was also derived. The temperature dependences of κ and λ 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.

Original language	English
Pages (from-to)	12471-12475
Number of pages	5
Journal	Ceramics International
Volume	40
Issue number	8 PART A
DOIs	https://doi.org/10.1016/j.ceramint.2014.04.101
Publication status	Published - Sep 2014

Keywords

Heat capacity
High pressure
High temperature
Thermal conductivity
Zirconia

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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title = "Thermal properties of Ca-doped stabilized zirconia under high pressure and high temperature",

abstract = "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. From κ and λ, heat capacity, C, was also derived. The temperature dependences of κ and λ 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.",

keywords = "Heat capacity, High pressure, High temperature, Thermal conductivity, Zirconia",

author = "Tatsuya Hiratoko and Akira Yoneda and Masahiro Osako",

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language = "English",

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T1 - Thermal properties of Ca-doped stabilized zirconia under high pressure and high temperature

AU - Hiratoko, Tatsuya

AU - Yoneda, Akira

AU - Osako, Masahiro

PY - 2014/9

Y1 - 2014/9

N2 - 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. From κ and λ, heat capacity, C, was also derived. The temperature dependences of κ and λ 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.

AB - 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. From κ and λ, heat capacity, C, was also derived. The temperature dependences of κ and λ 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.

KW - Heat capacity

KW - High pressure

KW - High temperature

KW - Thermal conductivity

KW - Zirconia

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EP - 12475

JO - Ceramics International

JF - Ceramics International

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