Thermal cycle behavior of plasma sprayed La2O3, Y2O3 stabilized ZrO2 coatings

Mineaki Matsumoto; Hiroshi Takayama; Daisaku Yokoe; Kazuo Mukai; Hideaki Matsubara; Yukio Kagiya; Yuuji Sugita

doi:10.1016/j.scriptamat.2006.03.015

Thermal cycle behavior of plasma sprayed La₂O₃, Y₂O₃ stabilized ZrO₂ coatings

Mineaki Matsumoto, Hiroshi Takayama, Daisaku Yokoe, Kazuo Mukai, Hideaki Matsubara, Yukio Kagiya, Yuuji Sugita

ENV - Environmental Studies for Advanced Society

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

57 Citations (Scopus)

Abstract

The effects of La₂O₃ addition on thermal conductivity, phase stability and thermal cycle life of Y₂O₃ stabilized ZrO₂ plasma sprayed coatings were investigated. Although low thermal conductivity as well as high resistance to sintering was achieved by La₂O₃ addition, it tended to also result in lower phase stability and thermal cycle life of the coatings. Optimization of the composition and structure of the coatings improved these properties, and the optimized coatings showed prolonged thermal cycle life.

Original language	English
Pages (from-to)	2035-2039
Number of pages	5
Journal	Scripta Materialia
Volume	54
Issue number	12
DOIs	https://doi.org/10.1016/j.scriptamat.2006.03.015
Publication status	Published - 2006 Jun 1

Keywords

LaO
Phase stability
Sintering
Thermal barrier coating (TBC)
Thermal conductivity
Thermal cycle life

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2006.03.015

Cite this

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title = "Thermal cycle behavior of plasma sprayed La2O3, Y2O3 stabilized ZrO2 coatings",

abstract = "The effects of La2O3 addition on thermal conductivity, phase stability and thermal cycle life of Y2O3 stabilized ZrO2 plasma sprayed coatings were investigated. Although low thermal conductivity as well as high resistance to sintering was achieved by La2O3 addition, it tended to also result in lower phase stability and thermal cycle life of the coatings. Optimization of the composition and structure of the coatings improved these properties, and the optimized coatings showed prolonged thermal cycle life.",

keywords = "LaO, Phase stability, Sintering, Thermal barrier coating (TBC), Thermal conductivity, Thermal cycle life",

author = "Mineaki Matsumoto and Hiroshi Takayama and Daisaku Yokoe and Kazuo Mukai and Hideaki Matsubara and Yukio Kagiya and Yuuji Sugita",

year = "2006",

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T1 - Thermal cycle behavior of plasma sprayed La2O3, Y2O3 stabilized ZrO2 coatings

AU - Matsumoto, Mineaki

AU - Takayama, Hiroshi

AU - Yokoe, Daisaku

AU - Mukai, Kazuo

AU - Matsubara, Hideaki

AU - Kagiya, Yukio

AU - Sugita, Yuuji

PY - 2006/6/1

Y1 - 2006/6/1

N2 - The effects of La2O3 addition on thermal conductivity, phase stability and thermal cycle life of Y2O3 stabilized ZrO2 plasma sprayed coatings were investigated. Although low thermal conductivity as well as high resistance to sintering was achieved by La2O3 addition, it tended to also result in lower phase stability and thermal cycle life of the coatings. Optimization of the composition and structure of the coatings improved these properties, and the optimized coatings showed prolonged thermal cycle life.

AB - The effects of La2O3 addition on thermal conductivity, phase stability and thermal cycle life of Y2O3 stabilized ZrO2 plasma sprayed coatings were investigated. Although low thermal conductivity as well as high resistance to sintering was achieved by La2O3 addition, it tended to also result in lower phase stability and thermal cycle life of the coatings. Optimization of the composition and structure of the coatings improved these properties, and the optimized coatings showed prolonged thermal cycle life.

KW - LaO

KW - Phase stability

KW - Sintering

KW - Thermal barrier coating (TBC)

KW - Thermal conductivity

KW - Thermal cycle life

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