Segmented thermal barrier coatings produced by atmospheric plasma spraying hollow powders

H. B. Guo; S. Kuroda; H. Murakami

doi:10.1016/j.tsf.2005.08.142

Segmented thermal barrier coatings produced by atmospheric plasma spraying hollow powders

H. B. Guo^*, S. Kuroda, H. Murakami

^*Corresponding author for this work

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

47 Citations (Scopus)

Abstract

Segmented thermal barrier coatings were produced by plasma spraying hollow and solid ZrO₂-8 wt.% Y₂O₃ powders. The solid powder (SP) had greater capability of producing segmentation cracks in coating compared with the hollow powder (HP). High substrate temperature (T _s) gave rise to an increased segmentation crack density (D _s). The segmentation crack network was still stable even after sintering at 1300 °C for 15 h. The microcracks that are mainly attributed to delaminations between splats had a negative effect on the origin and propagation of segmentation cracks.

Original language	English
Pages (from-to)	136-139
Number of pages	4
Journal	Thin Solid Films
Volume	506-507
DOIs	https://doi.org/10.1016/j.tsf.2005.08.142
Publication status	Published - 2006 May 26
Externally published	Yes

Keywords

Plasma spraying
Segmentation cracks
Thermal barrier coatings

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2005.08.142

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title = "Segmented thermal barrier coatings produced by atmospheric plasma spraying hollow powders",

abstract = "Segmented thermal barrier coatings were produced by plasma spraying hollow and solid ZrO2-8 wt.% Y2O3 powders. The solid powder (SP) had greater capability of producing segmentation cracks in coating compared with the hollow powder (HP). High substrate temperature (T s) gave rise to an increased segmentation crack density (D s). The segmentation crack network was still stable even after sintering at 1300 °C for 15 h. The microcracks that are mainly attributed to delaminations between splats had a negative effect on the origin and propagation of segmentation cracks.",

keywords = "Plasma spraying, Segmentation cracks, Thermal barrier coatings",

author = "Guo, {H. B.} and S. Kuroda and H. Murakami",

year = "2006",

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doi = "10.1016/j.tsf.2005.08.142",

language = "English",

volume = "506-507",

pages = "136--139",

journal = "Thin Solid Films",

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TY - JOUR

T1 - Segmented thermal barrier coatings produced by atmospheric plasma spraying hollow powders

AU - Guo, H. B.

AU - Kuroda, S.

AU - Murakami, H.

PY - 2006/5/26

Y1 - 2006/5/26

N2 - Segmented thermal barrier coatings were produced by plasma spraying hollow and solid ZrO2-8 wt.% Y2O3 powders. The solid powder (SP) had greater capability of producing segmentation cracks in coating compared with the hollow powder (HP). High substrate temperature (T s) gave rise to an increased segmentation crack density (D s). The segmentation crack network was still stable even after sintering at 1300 °C for 15 h. The microcracks that are mainly attributed to delaminations between splats had a negative effect on the origin and propagation of segmentation cracks.

AB - Segmented thermal barrier coatings were produced by plasma spraying hollow and solid ZrO2-8 wt.% Y2O3 powders. The solid powder (SP) had greater capability of producing segmentation cracks in coating compared with the hollow powder (HP). High substrate temperature (T s) gave rise to an increased segmentation crack density (D s). The segmentation crack network was still stable even after sintering at 1300 °C for 15 h. The microcracks that are mainly attributed to delaminations between splats had a negative effect on the origin and propagation of segmentation cracks.

KW - Plasma spraying

KW - Segmentation cracks

KW - Thermal barrier coatings

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DO - 10.1016/j.tsf.2005.08.142

M3 - Article

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SN - 0040-6090

VL - 506-507

SP - 136

EP - 139

JO - Thin Solid Films

JF - Thin Solid Films

ER -

Segmented thermal barrier coatings produced by atmospheric plasma spraying hollow powders

Abstract

Keywords

ASJC Scopus subject areas

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