Thermal diffusivity, specific heat, and thermal conductivity of (Ca1-x,Mgx)Zr4(PO4)6 ceramic

Dean-Mo Liu*

*Corresponding author for this work

Research output: Contribution to journalArticle

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The thermal diffusivity (a), specific heat (Cp), and thermal conductivity (K) of single phase (Ca1-x,MgxZr4 (PO4)6 (CMZP) ceramic with x=0.4 were investigated in terms of porosity and temperature. The dense CMZP ceramic exhibited values of thermal conductivity lower by a factor of approximately two up to 600°C. The conductivity can be further reduced, to as low as 0.4 W M-1 K-1, by 30% porosity. The temperature dependence of thermal diffusivity became less pronounced with increasing porosity, and a near-constant coefficient of thermal conductivity about 1.1 × 10-4 conduction unit per degree Celsius at temperatures of 30-600 °C, was observed for different porosities. These findings indicate that the CMZP ceramic may be an attractive candidate for thermal insulating applications.

Original languageEnglish
Pages (from-to)94-97
Number of pages4
JournalMaterials Science and Engineering B
Issue number2
StatePublished - 10 Apr 1994

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