Heat treatment of nanostructured thermal barrier coating

Na Wang; Chungen Zhou; Shengkai Gong; Huibin Xu

doi:10.1016/j.ceramint.2006.03.022

Heat treatment of nanostructured thermal barrier coating

Na Wang
, Chungen Zhou^*
, Shengkai Gong
, Huibin Xu

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

76 Scopus citations

Abstract

A nanostructured thermal barrier coating has been prepared by air plasma spraying using YSZ (8 wt% Y₂O₃ partially stabilized zirconia) nano powder. The effect of annealing on the nanostructured zirconia coating has been investigated. The grain size of the nanostructured zirconia coating increased with increasing annealing time and temperature. Grains grew with preferential direction and into a columnar structure. The growth activation energy in the nanocrystalline grains is very low, which comes from existence of micro-pores in the coating and the grain-rotation-induced grain coalescence (GRIGC) mechanism.

Original language	English
Pages (from-to)	1075-1081
Number of pages	7
Journal	Ceramics International
Volume	33
Issue number	6
DOIs	https://doi.org/10.1016/j.ceramint.2006.03.022
State	Published - Aug 2007

Keywords

Annealing
Nanostructure
Plasma spraying
Thermal barrier coating

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10.1016/j.ceramint.2006.03.022

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title = "Heat treatment of nanostructured thermal barrier coating",

abstract = "A nanostructured thermal barrier coating has been prepared by air plasma spraying using YSZ (8 wt\% Y2O3 partially stabilized zirconia) nano powder. The effect of annealing on the nanostructured zirconia coating has been investigated. The grain size of the nanostructured zirconia coating increased with increasing annealing time and temperature. Grains grew with preferential direction and into a columnar structure. The growth activation energy in the nanocrystalline grains is very low, which comes from existence of micro-pores in the coating and the grain-rotation-induced grain coalescence (GRIGC) mechanism.",

keywords = "Annealing, Nanostructure, Plasma spraying, Thermal barrier coating",

author = "Na Wang and Chungen Zhou and Shengkai Gong and Huibin Xu",

year = "2007",

month = aug,

doi = "10.1016/j.ceramint.2006.03.022",

language = "英语",

volume = "33",

pages = "1075--1081",

journal = "Ceramics International",

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TY - JOUR

T1 - Heat treatment of nanostructured thermal barrier coating

AU - Wang, Na

AU - Zhou, Chungen

AU - Gong, Shengkai

AU - Xu, Huibin

PY - 2007/8

Y1 - 2007/8

N2 - A nanostructured thermal barrier coating has been prepared by air plasma spraying using YSZ (8 wt% Y2O3 partially stabilized zirconia) nano powder. The effect of annealing on the nanostructured zirconia coating has been investigated. The grain size of the nanostructured zirconia coating increased with increasing annealing time and temperature. Grains grew with preferential direction and into a columnar structure. The growth activation energy in the nanocrystalline grains is very low, which comes from existence of micro-pores in the coating and the grain-rotation-induced grain coalescence (GRIGC) mechanism.

AB - A nanostructured thermal barrier coating has been prepared by air plasma spraying using YSZ (8 wt% Y2O3 partially stabilized zirconia) nano powder. The effect of annealing on the nanostructured zirconia coating has been investigated. The grain size of the nanostructured zirconia coating increased with increasing annealing time and temperature. Grains grew with preferential direction and into a columnar structure. The growth activation energy in the nanocrystalline grains is very low, which comes from existence of micro-pores in the coating and the grain-rotation-induced grain coalescence (GRIGC) mechanism.

KW - Annealing

KW - Nanostructure

KW - Plasma spraying

KW - Thermal barrier coating

UR - https://www.scopus.com/pages/publications/34250739871

U2 - 10.1016/j.ceramint.2006.03.022

DO - 10.1016/j.ceramint.2006.03.022

M3 - 文章

AN - SCOPUS:34250739871

SN - 0272-8842

VL - 33

SP - 1075

EP - 1081

JO - Ceramics International

JF - Ceramics International

IS - 6

ER -

Heat treatment of nanostructured thermal barrier coating

Abstract

Keywords

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