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Comparative tribological study of plasma sprayed alumina and alumina-yttria under severe conditions
Rong, Jian1,2; Yang, Kai1; Zhuang, Yin1; Zhao, Huayu1; Liu, Chenguang1; Tao, Shunyan1; Ding, Chuanxian1
2017
Source PublicationSurface and Coatings Technology
ISSN02578972
Volume316Pages:1-9
AbstractIn the current study, alumina and alumina-yttria composite coatings were prepared on stainless steel substrates via atmospheric plasma spraying. Their dry sliding wear performances against graphite under severe conditions were evaluated by using a ring-on-disk tribometer. The results showed that the addition of yttria has successfully decreased the friction coefficients of the alumina coatings. Further, the temperatures in the friction process rose sharply in the initial wear stage and then reached the state of thermal equilibrium. The temperatures of alumina-yttria coatings at thermal equilibrium stages were lower than those of alumina coatings, which may be due to their lower friction combined with the slightly higher thermal conductivity. High friction interface temperatures were considered to greatly aggravate the thermal stress, thereby intensifying the cracking of alumina coatings. Additionally, the addition of yttria improved the toughness of composite coatings and the related crack propagation resistance. © 2016 Elsevier B.V.
DOI10.1016/j.surfcoat.2016.11.065
EI Accession Number20171103441456
EI KeywordsComposite coatings
EI Classification Number641.1 Thermodynamics - 804.2 Inorganic Compounds - 813.2 Coating Materials - 931 Classical Physics ; Quantum Theory ; Relativity - 932.3 Plasma Physics - 951 Materials Science
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25648
Collection中国科学院上海硅酸盐研究所
Affiliation1.Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 201899, China;
2.University of Chinese Academy of Sciences, Beijing; 100039, China
Recommended Citation
GB/T 7714
Rong, Jian,Yang, Kai,Zhuang, Yin,et al. Comparative tribological study of plasma sprayed alumina and alumina-yttria under severe conditions[J]. Surface and Coatings Technology,2017,316:1-9.
APA Rong, Jian.,Yang, Kai.,Zhuang, Yin.,Zhao, Huayu.,Liu, Chenguang.,...&Ding, Chuanxian.(2017).Comparative tribological study of plasma sprayed alumina and alumina-yttria under severe conditions.Surface and Coatings Technology,316,1-9.
MLA Rong, Jian,et al."Comparative tribological study of plasma sprayed alumina and alumina-yttria under severe conditions".Surface and Coatings Technology 316(2017):1-9.
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