Influence of temperature on thermophysical properties of EB-PVD porous coatings and dense ceramics of 4 mol% Y2O3-stabilized ZrO2

Byung Koog Jang

doi:10.1016/j.jallcom.2009.02.091

Influence of temperature on thermophysical properties of EB-PVD porous coatings and dense ceramics of 4 mol% Y₂O₃-stabilized ZrO₂

Byung Koog Jang

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

23 Citations (Scopus)

Abstract

This work describes the experimental results of thermal diffusivities, thermal conductivities, and thermal resistivities of single coatings, double coatings, and sintered ceramics of 4 mol% Y₂O₃-stabilized ZrO₂ in a temperature range from room temperature to 1000 °C. The fractured surface of the coated samples revealed a columnar microstructure. The thermal conductivities and thermal diffusivities of both EB-PVD coatings and sintered ceramics decreased with increasing temperature. The thermal diffusivities and thermal conductivities of double-layer coatings were lower than those of single-layer coatings and sintered ceramics at a given temperature.

Original language	English
Pages (from-to)	806-809
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	480
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2009.02.091
Publication status	Published - Jul 8 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2009.02.091

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AB - This work describes the experimental results of thermal diffusivities, thermal conductivities, and thermal resistivities of single coatings, double coatings, and sintered ceramics of 4 mol% Y2O3-stabilized ZrO2 in a temperature range from room temperature to 1000 °C. The fractured surface of the coated samples revealed a columnar microstructure. The thermal conductivities and thermal diffusivities of both EB-PVD coatings and sintered ceramics decreased with increasing temperature. The thermal diffusivities and thermal conductivities of double-layer coatings were lower than those of single-layer coatings and sintered ceramics at a given temperature.

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Influence of temperature on thermophysical properties of EB-PVD porous coatings and dense ceramics of 4 mol% Y₂O₃-stabilized ZrO₂

Abstract

All Science Journal Classification (ASJC) codes

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