Thermal conductivity of nano-pore dispersed Y-PSZ fabricated by EB-PVD

Byung Koog Jang, Norio Yamaguchi, Hideaki Matsubara

Research output: Contribution to journalArticlepeer-review

Abstract

ZrO2-4mol% Y2O3 coatings on zirconia substrate were deposited by EB-PVD. Influence of the coating thickness on thermal conductivity and thermal diffusivity of coated samples is examined. The fractured surface of the coated samples reveals a columnar microstructure consisting of feather-like structure. We have adopted a laser flash method for thermal diffusivity and specific heat capacity of coated samples. It was found that the thermal conductivity of the coating layers was strongly dependent on coating thickness. The thermal conductivity of coating layers shows increasing tendency with increasing the coating thickness.

Original languageEnglish
Pages (from-to)509-512
Number of pages4
JournalKey Engineering Materials
Volume317-318
Publication statusPublished - 2006 Jan 1

Keywords

  • Columnar structure
  • EB-PVD
  • Nano pore
  • Thermal conductivity
  • Zirconia

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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