Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings | |
Li Wensheng; Yang Lexin; An Guosheng; Cheng Bo; Feng Li; Zhang Yi | |
刊名 | RARE METAL MATERIALS AND ENGINEERING |
2019-11 | |
卷号 | 48期号:11页码:3527-3534 |
关键词 | D-gun LZO/8YSZ double ceramic coating 1100 degrees C isothermal oxidation TGO |
ISSN号 | 1002-185X |
英文摘要 | In order to clarify the inhibitory effect of LZO (La2Zr2O7) on the oxidation of bond-coat in thermal barrier coatings (TBCs), NiCoCrAlY bond-coat was deposited on 310S substrate by detonation gun spraying, and single ceramic 8YSZ coating and LZO/8YSZ double ceramic coating were deposited by air plasma spraying. The microstructure and phase structure of TBCs before and after high temperature oxidation were analyzed by SEM, EDS and XRD. The results show that the relative oxidation mass gain of the double ceramic LZO/8YSZ and the single ceramic 8YSZ structure are 2.82 and 3.13 mg/cm(2), respectively. Their TGO (thermally grown oxide) growth rate constant K-p is 5.79 x 10(-2) and 6.26 x 10(-2) m(2)/h, respectively. And the corresponding thickness distribution range is 3.75 similar to 5.25 mu m and 5 similar to 5.5 mu m, respectively after isothermal oxidation (100 h) at 1100 degrees C. Compared with the single ceramic 8YSZ TBCs, TGO exhibits obvious characteristics which are less oxidation mass gain, lower growth rate, and slower beta phase transition in bond-coat of the LZO/8YSZ double ceramic TBCs. |
URL标识 | 查看原文 |
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:000500083600016 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://219.246.112.31/handle/2XXMBERH/56499] |
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,Yang Lexin,An Guosheng,et al. Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(11):3527-3534. |
APA | Li Wensheng,Yang Lexin,An Guosheng,Cheng Bo,Feng Li,&Zhang Yi.(2019).Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings.RARE METAL MATERIALS AND ENGINEERING,48(11),3527-3534. |
MLA | Li Wensheng,et al."Inhibition Behavior of LZO on the Oxidation of Bond-coat in Thermal Barrier Coatings".RARE METAL MATERIALS AND ENGINEERING 48.11(2019):3527-3534. |
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