Phase stability and thermal cycle life of ZrO 2-Y 2O 3-La 2O 3 coatings produced by EB-PVD

Mineaki Matsumoto; Norio Yamaguchi; Hideaki Matsubara

doi:10.2320/jinstmet.69.43

Phase stability and thermal cycle life of ZrO ₂-Y ₂O ₃-La ₂O ₃ coatings produced by EB-PVD

Mineaki Matsumoto, Norio Yamaguchi, Hideaki Matsubara

ENV - Environmental Studies for Advanced Society

Japan Fine Ceramics Center

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

6 Citations (Scopus)

Abstract

Effect of La ₂O ₃ addition on phase stability and thermal cycle life of Y ₂O ₃ stabilized ZrO ₂ (YSZ) coatings produced by EBPVD was investigated. The developed coating showed low thermal conductivity even after high temperature exposure due to its high resistance to sintering. However, phase stability and thermal cycle life of the coating decreased as the amount of La ₂O ₃ was increased. Further experiments were necessary to optimize the amount of stabilizers (Y ₂O ₃, La ₂O ₃) in order to develop advanced thermal barrier coatings.

Original language	English
Pages (from-to)	43-47
Number of pages	5
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	69
Issue number	1
DOIs	https://doi.org/10.2320/jinstmet.69.43
Publication status	Published - 2005 Jan

Keywords

Lanthania
Phase stability
Sintering
Thermal barrier coating
Thermal cycle life
Yttiria stabilized zirconia

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10.2320/jinstmet.69.43

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abstract = "Effect of La 2O 3 addition on phase stability and thermal cycle life of Y 2O 3 stabilized ZrO 2 (YSZ) coatings produced by EBPVD was investigated. The developed coating showed low thermal conductivity even after high temperature exposure due to its high resistance to sintering. However, phase stability and thermal cycle life of the coating decreased as the amount of La 2O 3 was increased. Further experiments were necessary to optimize the amount of stabilizers (Y 2O 3, La 2O 3) in order to develop advanced thermal barrier coatings.",

keywords = "Lanthania, Phase stability, Sintering, Thermal barrier coating, Thermal cycle life, Yttiria stabilized zirconia",

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T1 - Phase stability and thermal cycle life of ZrO 2-Y 2O 3-La 2O 3 coatings produced by EB-PVD

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AU - Yamaguchi, Norio

AU - Matsubara, Hideaki

PY - 2005/1

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N2 - Effect of La 2O 3 addition on phase stability and thermal cycle life of Y 2O 3 stabilized ZrO 2 (YSZ) coatings produced by EBPVD was investigated. The developed coating showed low thermal conductivity even after high temperature exposure due to its high resistance to sintering. However, phase stability and thermal cycle life of the coating decreased as the amount of La 2O 3 was increased. Further experiments were necessary to optimize the amount of stabilizers (Y 2O 3, La 2O 3) in order to develop advanced thermal barrier coatings.

AB - Effect of La 2O 3 addition on phase stability and thermal cycle life of Y 2O 3 stabilized ZrO 2 (YSZ) coatings produced by EBPVD was investigated. The developed coating showed low thermal conductivity even after high temperature exposure due to its high resistance to sintering. However, phase stability and thermal cycle life of the coating decreased as the amount of La 2O 3 was increased. Further experiments were necessary to optimize the amount of stabilizers (Y 2O 3, La 2O 3) in order to develop advanced thermal barrier coatings.

KW - Lanthania

KW - Phase stability

KW - Sintering

KW - Thermal barrier coating

KW - Thermal cycle life

KW - Yttiria stabilized zirconia

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Phase stability and thermal cycle life of ZrO ₂-Y ₂O ₃-La ₂O ₃ coatings produced by EB-PVD

Abstract

Keywords

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