Phase Composition, Mechanical and Thermal Properties of (MgO)0.1-x(YO1.5)x(ZrO2)0.9 and (MgO)0.1-x(CaO)x(ZrO2)0.9 Ceramics

Author:

Fan Chuan Gang1,Xu Lan2,Yan Jie Rong1,Zheng Cui Hong1,Li Jia Mao3

Affiliation:

1. Anhui University of Technology

2. Magang Refractory Co. Ltd,

3. Nanjing University of Technology

Abstract

(MgO)0.1-x(YO1.5)x(ZrO2)0.9 (MYZ) and (MgO)0.1-x(CaO)x(ZrO2)0.9 (MCZ) ceramics were prepared and their phase composition, bulk density, flexural strength, and thermal shock resistance were characterized. There was an abrupt change of c/(c+m) from 29% to 75% as 0<x<0.01 for MYZ, and a change of c/(c+m) from 42% to 88% appeared as 0.02<x<0.03 for MCZ (the c and m representing the content of the cubic and the monoclinic phases respectively). When x=0.01~0.05, the resulting MYZ specimens had the resembling c/(c+m) at about 75%, and a thermal shock resistance of more than 5 times (1100oC⇔25oC) appeared for x=0.03~0.05 specimens. However for MCZ, only specimen of x=0.01 with c/(c+m) of 33% had a thermal shock resistance more than 5 times.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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