Microstructure and its influence on thermal and electrical conductivity of ZrO2-Ag composites

Dean-Mo LIu; W. H. Tuan

doi:10.1016/S0254-0584(96)01898-6

Microstructure and its influence on thermal and electrical conductivity of ZrO₂-Ag composites

Dean-Mo LIu^*, W. H. Tuan

^*Corresponding author for this work

Department of Materials Science and Engineering

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

9 Scopus citations

Abstract

The effects of Ag content on the thermal diffusivity and conductivity of the ZrO₂-Ag composites were investigated. Experimental results showed a significant increase in thermal conductivity at Ag ≥ ∼ 10 vol.%, which was primarily due to the formation of continuous Ag phase and a direct evidence was confirmed by a precipitous drop in electrical resistivity. The formation of interconnected Ag phase made the thermal conductivity of the ZrO₂-Ag composites far beyond theoretical expectation.

Original language	English
Pages (from-to)	258-262
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	48
Issue number	3
DOIs	https://doi.org/10.1016/S0254-0584(96)01898-6
State	Published - 15 May 1997

Keywords

Ceramic matrix composite
Electrical resistivity
Thermal conductivity
ZrO-Ag composite

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abstract = "The effects of Ag content on the thermal diffusivity and conductivity of the ZrO2-Ag composites were investigated. Experimental results showed a significant increase in thermal conductivity at Ag ≥ ∼ 10 vol.%, which was primarily due to the formation of continuous Ag phase and a direct evidence was confirmed by a precipitous drop in electrical resistivity. The formation of interconnected Ag phase made the thermal conductivity of the ZrO2-Ag composites far beyond theoretical expectation.",

keywords = "Ceramic matrix composite, Electrical resistivity, Thermal conductivity, ZrO-Ag composite",

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N2 - The effects of Ag content on the thermal diffusivity and conductivity of the ZrO2-Ag composites were investigated. Experimental results showed a significant increase in thermal conductivity at Ag ≥ ∼ 10 vol.%, which was primarily due to the formation of continuous Ag phase and a direct evidence was confirmed by a precipitous drop in electrical resistivity. The formation of interconnected Ag phase made the thermal conductivity of the ZrO2-Ag composites far beyond theoretical expectation.

AB - The effects of Ag content on the thermal diffusivity and conductivity of the ZrO2-Ag composites were investigated. Experimental results showed a significant increase in thermal conductivity at Ag ≥ ∼ 10 vol.%, which was primarily due to the formation of continuous Ag phase and a direct evidence was confirmed by a precipitous drop in electrical resistivity. The formation of interconnected Ag phase made the thermal conductivity of the ZrO2-Ag composites far beyond theoretical expectation.

KW - Ceramic matrix composite

KW - Electrical resistivity

KW - Thermal conductivity

KW - ZrO-Ag composite

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DO - 10.1016/S0254-0584(96)01898-6

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