Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings
Li Wensheng; Zhang Yi; An Guosheng; Cheng Bo; Feng Li; Yang Lexin
2019-12
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume48Issue:12Pages:3961-3968
AbstractThe high temperature oxidation resistance of YAG/8YSZ double ceramic and 8YSZ single ceramic thermal barrier coatings system were analyzed. The bond-coat (NiCoCrAlY) was deposited on a 310S heat-resistant stainless steel substrate by detonation gun spraying, and YAG/8YSZ double ceramic and 8YSZ single ceramic thermal barrier coatings were deposited on the bond-coat by air plasma spraying (APS). The cross-section and surface characteristics of the coating were analyzed by SEM and XRD before and after oxidation. The oxidative mass gain kinetics, microstructure, phase of the YAG ceramic layer, and the TGO growth process and growth kinetics of the two thermal barrier coating systems were comparatively investigated after isothermal oxidation at 1100 degrees C. The results show that the YAG ceramic layer shows no obvious phase transformation after isothermal oxidation at 1100 degrees C for 200 h, and the porosity is slightly reduced. The oxidation mass gain rate and TGO growth rate of YAG/8YSZ double ceramic layers system are 1.7 times and 1.4 times lower than those of 8YSZ single ceramic layer system, respectively. The double ceramic layer system shows lower fl-NiAl phase consumption rate and island oxide growth rate, which results in a better high temperature oxidation resistance.
Keywordthermal barrier coatings isothermal oxidation APS TGO YAG
Indexed BySCI
Language中文
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000504920800027
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64219
Collection材料科学与工程学院
省部共建有色金属先进加工与再利用国家重点实验室
Corresponding AuthorLi Wensheng
AffiliationLanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Recommended Citation
GB/T 7714
Li Wensheng,Zhang Yi,An Guosheng,et al. Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(12):3961-3968.
APA Li Wensheng,Zhang Yi,An Guosheng,Cheng Bo,Feng Li,&Yang Lexin.(2019).Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings.RARE METAL MATERIALS AND ENGINEERING,48(12),3961-3968.
MLA Li Wensheng,et al."Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings".RARE METAL MATERIALS AND ENGINEERING 48.12(2019):3961-3968.
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