Quick Search:       Advanced Search
李文生,张义,安国升,成波,冯力,杨乐馨.YAG/8YSZ双陶瓷热障涂层等温氧化性能研究[J].稀有金属材料与工程(英文),2019,48(12):3961~3968.[Li Wensheng,Zhang Yi,An Guosheng,Cheng Bo,Feng Li and Yang Lexin.Study on Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings[J].Rare Metal Materials and Engineering,2019,48(12):3961~3968.]
Study on Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings
Download Pdf  View/Add Comment  Download reader
Received:September 11, 2018  Revised:October 29, 2018
DOI:
Key words: Thermal Barrial Coatings  Isothermal Oxidation  APS  TGO  YAG
Foundation item:国家国际科技合作项目(2015DFR51090); 甘肃省重点研发计划项目(17YF1WA159)、科技特派计划(17JR7WA017)
Author NameAffiliation
Li Wensheng,Zhang Yi,An Guosheng,Cheng Bo,Feng Li and Yang Lexin  
Hits: 23
Download times: 8
Abstract:
      In this paper, the 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), respectively. The cross-section and surface characteristics of the coating were analyzed by SEM and XRD before and after oxidation. The oxidative weight 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 °C. The results showed that the YAG ceramic layer shows no obvious phase transformation after isothermal oxidation at 1100 °C for 200 h, and the porosity was slightly reduced. The oxidation weight gain rate and TGO growth rate of YAG/8YSZ double ceramic layers system was 1.7 times and 1.4 times lower than that of 8YSZ single ceramic layer system, respectively. The double ceramic layer system showed a low the β-NiAl phase consumption rate and the island oxide growth rate, which resulted in a better high temperature oxidation resistance.