Improved resistance of lanthanum zirconate coatings to calcium-magnesium-alumina-silicate corrosion through composition tailoring

doi:10.1016/j.ceramint.2018.04.239

	Improved resistance of lanthanum zirconate coatings to calcium-magnesium-alumina-silicate corrosion through composition tailoring
	Zhu, Changhua 1; Liu, Yuchen 1; Wang, Duojin 1; Zhou, Yanchun 2; Yang, Guang 1; Chen, Hongfei 1; Gao, Yanfeng 1; Liu, Bin 1
刊名	Ceramics International
	2018
卷号	44 期号:12 页码:13908-13915
ISSN号	02728842
DOI	10.1016/j.ceramint.2018.04.239
英文摘要	Calcium–magnesium–alumina–silicate (CMAS) corrosion resistance is an important issue on the design of next-generation thermal battier coatings. As one of the promising thermal battier coatings, the lanthanum zirconate coating has attracted continuous attention. In this work, three lanthanum zirconate coatings with different La/Zr composition, i.e., La1.8Zr2.2O7.1, La2Zr2O7, and La2.5Zr1.5O6.75, are fabricated by laser-enhanced chemical vapour deposition, and their resistance to CMAS corrosion at 1250 °C is investigated. Among them, La2.5Zr1.5O6.75shows the best CMAS corrosion resistance because increased La content is beneficial to the formation of a dense and continuous apatite Ca2La8(SiO4)6O2layer, which effectively slows down the subsequent molten CMAS penetration. This study clarifies the significant role of rare earth on CMAS corrosion resistance and is expected to guide the future design of rare-earth-based thermal battier coatings through composition tailoring. © 2018 Elsevier Ltd and Techna Group S.r.l.
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25177]
专题	中国科学院上海硅酸盐研究所
作者单位	1.School of Materials Science and Engineering, Shanghai University, Shanghai; 200444, China; 2.Science and Technology on Advanced Functional Composite Laboratory, Aerospace Research Institute of Materials and Processing Technology, Beijing; 100076, China
推荐引用方式 GB/T 7714	Zhu, Changhua,Liu, Yuchen,Wang, Duojin,et al. Improved resistance of lanthanum zirconate coatings to calcium-magnesium-alumina-silicate corrosion through composition tailoring[J]. Ceramics International,2018,44(12):13908-13915.
APA	Zhu, Changhua.,Liu, Yuchen.,Wang, Duojin.,Zhou, Yanchun.,Yang, Guang.,...&Liu, Bin.(2018).Improved resistance of lanthanum zirconate coatings to calcium-magnesium-alumina-silicate corrosion through composition tailoring.Ceramics International,44(12),13908-13915.
MLA	Zhu, Changhua,et al."Improved resistance of lanthanum zirconate coatings to calcium-magnesium-alumina-silicate corrosion through composition tailoring".Ceramics International 44.12(2018):13908-13915.