| Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate | |
| Zhang, Chengguan1; Fan, Yun1; Zhao, Juanli1; Chen, Hongfei1; Sun, Luchao2; Yang, Guang1; Liu, Bin1 | |
| Corresponding Author | Liu, Bin(binliu@shu.edu.cn) |
| 2021-06-01 | |
| Source Publication | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| ISSN | 0955-2219 |
| Volume | 41Issue:6Pages:3687-3695 |
| Abstract | Gadolinium zirconate is a promising next-generation thermal barrier coating material and its CaO-MgO-Al2O3SiO2 (CMAS) resistance needs to be further increased. In this study, three gadolinium zirconate coatings with different Gd/Zr ratios are successfully prepared via atmospheric plasma spray using amorphous feedstock. Their mechanical properties and corrosion resistance are investigated. The Young?s moduli and hardness of as-sprayed coatings are comparable with the gadolinium zirconate coatings reported in previous literature. Furthermore, the higher Gd content promotes the formation of the Gd-apatite and the depletion rate of CMAS corrosion. As a result, the infiltration depth of Gd2.3Zr1.7O6.85 coating after 24 h annealing decreases up to 35 % compared with those of Gd2.0Zr2.0O7.0 and Gd1.8Zr2.2O7.1, exhibiting an enhanced long-term corrosion resistance. This work develops a viable fabrication method to produce non-stoichiometric gadolinium zirconate coatings with tailorable CMAS corrosion resistance and is expected to promote the future design of thermal barrier coatings with long service life. |
| Keyword | Thermal barrier coating Gadolinium zirconate Nonstoichiometry Corrosion resistance |
| Funding Organization | Natural Science Foundation of Shanghai ; National Natural Science Foundation of China ; Program for Professor of Special Appointment (Eastern Scholar) by Shanghai Municipal Education Commission |
| DOI | 10.1016/j.jeurceramsoc.2021.01.016 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Shanghai[20ZR1419200] ; National Natural Science Foundation of China[52072231] ; National Natural Science Foundation of China[52072232] ; Program for Professor of Special Appointment (Eastern Scholar) by Shanghai Municipal Education Commission[TP2015040] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000635771000005 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/162233 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Bin |
| Affiliation | 1.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Chengguan,Fan, Yun,Zhao, Juanli,et al. Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2021,41(6):3687-3695. |
| APA | Zhang, Chengguan.,Fan, Yun.,Zhao, Juanli.,Chen, Hongfei.,Sun, Luchao.,...&Liu, Bin.(2021).Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,41(6),3687-3695. |
| MLA | Zhang, Chengguan,et al."Corrosion resistance of nonstoichiometric gadolinium zirconate coatings against CaO-MgO-Al2O3-SiO2 silicate".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 41.6(2021):3687-3695. |
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