Preparation and phase stability of YSZ-alumina composite by roller vibration milling

Author

Sun, Yinzhang ; Wang, Shulin ; Tang, Hongzhi ; Cao, Deming ; Liu, Di

Author_Institution

Sch. of Energy & Power Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China

Volume

2

fYear

2011

fDate

20-22 May 2011

Firstpage

2036

Lastpage

2039

Abstract

The synthesis of 8mol%Y₂O₃-ZrO₂ (YSZ) with 6 wt% Al₂O₃ by roller vibration milling at room temperature and phase stability of the calcined composite were investigated. The alloying process contained plastic deformation, grain size reduction, particle implantation and atomic diffusion. Disappearance of alumina feature in composite after MA for 45h confirmed the dissolution of alumina in YSZ. It was the grain size reduction that promoted the particle implantation. Phase stability at high temperature analysis reveals the composite can be employed as thermal barrier coating materials.

Keywords

alumina; composite materials; mechanical stability; milling; plastic deformation; thermal barrier coatings; vibrations; yttrium; zirconium compounds; Y₂O₃-ZrO₂; alumina composite; atomic diffusion; grain size reduction; particle implantation; phase stability; plastic deformation; roller vibration milling; thermal barrier coating material; time 45 h; yttria partially stabilized zirconia; Materials; Microstructure; Vibrations; Alumina; Mechanical alloying; Phase stability; Thermal barrier coating; YSZ;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930738

Filename

5930738