Preparation and properties of Sm2Zr2O7 ceramics for thermal barrier coatings by APS

Xiankai Sun; Quansheng Wang; Yanbo Liu; Xianjin Ning; Can Wang

doi:10.4028/www.scientific.net/AMR.354-355.478

Preparation and properties of Sm₂Zr₂O₇ ceramics for thermal barrier coatings by APS

Xiankai Sun^*, Quansheng Wang, Yanbo Liu, Xianjin Ning, Can Wang

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

Material of Sm₂Zr₂O₇ composition powder was synthesized by coprecipitation method using Sm2O3 and ZrOCl ₂·8H₂O as raw materials, and applied as ceramic topcoats of thermal barrier coating (TBC) by atmospheric plasma spraying (APS). The ceramics powder was prepared with proper distribution of particle size about 30-70μm by spray-dried method. Phase analyses revealed that Sm ₂Zr₂O₇ coatings keeping the single phase with pyrochlore structure before and after the thermal cycling test. The thermally grown oxide at the topcoat-bondcoat interface and the formation of transverse crack were the major factors that lead to the coating failure on thermal cycling.

Original language	English
Title of host publication	Progress in Power and Electrical Engineering
Pages	478-482
Number of pages	5
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.354-355.478
Publication status	Published - 2012
Event	2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011 - Shanghai, China Duration: 21 Oct 2011 → 23 Oct 2011

Publication series

Name	Advanced Materials Research
Volume	354-355
ISSN (Print)	1022-6680

Conference

Conference	2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011
Country/Territory	China
City	Shanghai
Period	21/10/11 → 23/10/11

Keywords

Atmospheric plasma spraying
Rare-earth zirconates
Thermal barrier coating (TBC)
Thermal shock resistance

Access to Document

10.4028/www.scientific.net/AMR.354-355.478

Cite this

@inproceedings{a6732b66314e43adb5f815699d0d10e7,

title = "Preparation and properties of Sm2Zr2O7 ceramics for thermal barrier coatings by APS",

abstract = "Material of Sm2Zr2O7 composition powder was synthesized by coprecipitation method using Sm2O3 and ZrOCl 2·8H2O as raw materials, and applied as ceramic topcoats of thermal barrier coating (TBC) by atmospheric plasma spraying (APS). The ceramics powder was prepared with proper distribution of particle size about 30-70μm by spray-dried method. Phase analyses revealed that Sm 2Zr2O7 coatings keeping the single phase with pyrochlore structure before and after the thermal cycling test. The thermally grown oxide at the topcoat-bondcoat interface and the formation of transverse crack were the major factors that lead to the coating failure on thermal cycling.",

keywords = "Atmospheric plasma spraying, Rare-earth zirconates, Thermal barrier coating (TBC), Thermal shock resistance",

author = "Xiankai Sun and Quansheng Wang and Yanbo Liu and Xianjin Ning and Can Wang",

year = "2012",

doi = "10.4028/www.scientific.net/AMR.354-355.478",

language = "English",

isbn = "9783037852668",

series = "Advanced Materials Research",

pages = "478--482",

booktitle = "Progress in Power and Electrical Engineering",

note = "2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011 ; Conference date: 21-10-2011 Through 23-10-2011",

}

Sun, X, Wang, Q , Liu, Y , Ning, X & Wang, C 2012, Preparation and properties of Sm₂Zr₂O₇ ceramics for thermal barrier coatings by APS. in Progress in Power and Electrical Engineering. Advanced Materials Research, vol. 354-355, pp. 478-482, 2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011, Shanghai, China, 21/10/11. https://doi.org/10.4028/www.scientific.net/AMR.354-355.478

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T1 - Preparation and properties of Sm2Zr2O7 ceramics for thermal barrier coatings by APS

AU - Sun, Xiankai

AU - Wang, Quansheng

AU - Liu, Yanbo

AU - Ning, Xianjin

AU - Wang, Can

PY - 2012

Y1 - 2012

N2 - Material of Sm2Zr2O7 composition powder was synthesized by coprecipitation method using Sm2O3 and ZrOCl 2·8H2O as raw materials, and applied as ceramic topcoats of thermal barrier coating (TBC) by atmospheric plasma spraying (APS). The ceramics powder was prepared with proper distribution of particle size about 30-70μm by spray-dried method. Phase analyses revealed that Sm 2Zr2O7 coatings keeping the single phase with pyrochlore structure before and after the thermal cycling test. The thermally grown oxide at the topcoat-bondcoat interface and the formation of transverse crack were the major factors that lead to the coating failure on thermal cycling.

AB - Material of Sm2Zr2O7 composition powder was synthesized by coprecipitation method using Sm2O3 and ZrOCl 2·8H2O as raw materials, and applied as ceramic topcoats of thermal barrier coating (TBC) by atmospheric plasma spraying (APS). The ceramics powder was prepared with proper distribution of particle size about 30-70μm by spray-dried method. Phase analyses revealed that Sm 2Zr2O7 coatings keeping the single phase with pyrochlore structure before and after the thermal cycling test. The thermally grown oxide at the topcoat-bondcoat interface and the formation of transverse crack were the major factors that lead to the coating failure on thermal cycling.

KW - Atmospheric plasma spraying

KW - Rare-earth zirconates

KW - Thermal barrier coating (TBC)

KW - Thermal shock resistance

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