A promising non-transformable tetragonal YSZ nanostructured feedstocks for plasma spraying-physical vapor deposition. Issue 1 (January 2018)

• Record Type: Journal Article
• Authors: Zhou, Feifei; Wang, You; Wang, Yaming; Wang, Liang; Gou, Junfeng; Chen, Wenlong
• Is Part Of: Ceramics international. Volume 44:Issue 1(2018)
• Page Start: 1201
• Page End: 1204
• Publication Date: 2018-01
• Subjects: Nanostructure -- YSZ -- Tetragonal prime -- PS-PVD -- Powder reconstitution; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2017.10.012
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The nanostructured 8 wt% yttria stabilized zirconia (n-8YSZ) feedstocks used for plasma spraying-physical vapor deposition (PS-PVD) were successfully prepared by the powder reconstitution method for the first time in this study. The n-8YSZ feedstocks were characterized by TEM, SEM and XRD. The results reveal that the grain size of n-8YSZ feedstocks is below 20 nm and the particle size of spherical or equiaxed agglomerates is below 23 µm. The n-8YSZ feedstocks are composed of only tetragonal prime (t´) phase. The t´ phase of feedstocks would bring excellent thermal shock resistance in the coatings. Hence, the n-8YSZ feedstocks will have a broader application prospect than the commercial M6700 powders whose main phase composition is monoclinic zirconia used for PS-PVD.