Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings

	Isothermal Oxidation Properties of YAG/8YSZ Double Ceramic Thermal Barrier Coatings
	Li Wensheng; Zhang Yi; An Guosheng; Cheng Bo; Feng Li; Yang Lexin
刊名	RARE METAL MATERIALS AND ENGINEERING
	2019-12
卷号	48 期号:12 页码:3961-3968
关键词	thermal barrier coatings isothermal oxidation APS TGO YAG
ISSN号	1002-185X
英文摘要	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). 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.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000504920800027
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64219]
专题	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
通讯作者	Li Wensheng
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 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.