A multicomponent γ-type (Gd1/6Tb1/6Dy1/6Tm1/6Yb1/6Lu1/6)2Si2O7 disilicate with outstanding thermal stability

Autor:	Luchao Sun, Yixiu Luo, Xiaomin Ren, Zenghua Gao, Tiefeng Du, Zhen Wu, Jingyang Wang
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	multicomponent complex oxide thermal stability thermal and environmental barrier coating Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 8, Iss 11, Pp 424-430 (2020)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2020.1783007
Popis:	A multicomponent rare-earth disilicate (Gd1/6Tb1/6Dy1/6Tm1/6Yb1/6Lu1/6)2Si2O7 has been designed and successfully synthesized following the strategy of high entropy engineering. The as-prepared single-phase 6RE-disilicate possesses a new γ-type crystal structure (monoclinic, P21/c) beyond the α-, β- and δ-type parent structures of six single RE disilicates. Six-species RE cations are homogeneously distributed on RE lattice sites and our multicomponent disilicate demonstrates outstanding thermal stability from room temperature up to around 1900°C. This work extends the knowledge of strategic multicomponent modification of complex ceramics with extremely high phase stability.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a6cf9f226f514867971388fa321a61d9 Zobrazit plný text záznamu View record in DOAJ