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Phase and Microstructure Evolution and Toughening Mechanism of a Hierarchical Architectured Al2O3-Y2O3 Coating under High Temperature
Rong, Jian1; Yang, Kai; Zhuang, Yin; Ni, Jinxing; Zhao, Huayu; Tao, Shunyan; Zhong, Xinghua; Ding, Chuanxian
2018
Source PublicationJOURNAL OF THERMAL SPRAY TECHNOLOGY
ISSN1059-9630
Volume27Issue:3Pages:358
AbstractIn recent years, numerous techniques have been developed to mimic nacre-like hierarchical architectures in order to improve the damage tolerance of materials. We present herein a simple strategy to fabricate such a hierarchical architectured Al2O3-Y2O3 composite coating via atmospheric plasma spraying. The evolution of the phase and microstructure of the Al2O3-Y2O3 composite coating were characterized under conditions of high-temperature exposure in air at 800-1350 A degrees C. The hardness and porosity of several typical coatings were determined. In situ formation of dense hierarchical architectured Al2O3-YAG composite coating with improved hardness was achieved after heat treatment at 1350 A degrees C. Compared with Al2O3 coating, elevated toughness was found for the hierarchical architectured Al2O3-YAG composite coating, which can be ascribed to the distribution of YAG phase that contributed to crack termination and deflection, and microbridging. After thermal aging treatment at 1350 A degrees C, the hierarchical architectured Al2O3-YAG composite coating was quite stable after 100 h of thermal exposure. Furthermore, the Al2O3-Y2O3 composite coating exhibited superior sintering resistance compared with the Al2O3 coating.
KeywordAl2O3-Y2O3 Al2O3-YAG hierarchical architecture high temperature plasma spraying
Subject AreaMaterials Science, Coatings & Films
MOST Discipline CatalogueMaterials Science
Funding OrganizationThis study is jointly supported by the National Nature Science Foundation of China (51302299, 51772311), Shanghai Natural Science Fund Project (13ZR1446000, 17ZR1434700), and Youth Innovation Promotion Association, Chinese Academy of Sciences (2016230). ; This study is jointly supported by the National Nature Science Foundation of China (51302299, 51772311), Shanghai Natural Science Fund Project (13ZR1446000, 17ZR1434700), and Youth Innovation Promotion Association, Chinese Academy of Sciences (2016230).
DOI10.1007/s11666-018-0691-5
Funding OrganizationThis study is jointly supported by the National Nature Science Foundation of China (51302299, 51772311), Shanghai Natural Science Fund Project (13ZR1446000, 17ZR1434700), and Youth Innovation Promotion Association, Chinese Academy of Sciences (2016230). ; This study is jointly supported by the National Nature Science Foundation of China (51302299, 51772311), Shanghai Natural Science Fund Project (13ZR1446000, 17ZR1434700), and Youth Innovation Promotion Association, Chinese Academy of Sciences (2016230).
WOS SubjectMETASTABLE PHASES ; PLASMA ; COMPOSITE ; CERAMICS ; TOUGHNESS ; Y4AL2O9 ; ALUMINA
WOS IDWOS:000425622500010
PublisherSPRINGER
EI Accession Number1544-1016
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/24506
Collection中国科学院上海硅酸盐研究所
Affiliation1.Chinese Acad Sci, Key Lab Inorgan Coating Mat, Shanghai Inst Ceram, Shanghai 201899, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Rong, Jian,Yang, Kai,Zhuang, Yin,et al. Phase and Microstructure Evolution and Toughening Mechanism of a Hierarchical Architectured Al2O3-Y2O3 Coating under High Temperature[J]. JOURNAL OF THERMAL SPRAY TECHNOLOGY,2018,27(3):358, 370.
APA Rong, Jian.,Yang, Kai.,Zhuang, Yin.,Ni, Jinxing.,Zhao, Huayu.,...&Ding, Chuanxian.(2018).Phase and Microstructure Evolution and Toughening Mechanism of a Hierarchical Architectured Al2O3-Y2O3 Coating under High Temperature.JOURNAL OF THERMAL SPRAY TECHNOLOGY,27(3),358.
MLA Rong, Jian,et al."Phase and Microstructure Evolution and Toughening Mechanism of a Hierarchical Architectured Al2O3-Y2O3 Coating under High Temperature".JOURNAL OF THERMAL SPRAY TECHNOLOGY 27.3(2018):358.
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