WANG Shouxing, WEI Meiling, ZHOU Changling, MU Shanhao
(Shandong Research and Design Institute of Industrial Ceramics, Zibo 255031, Shandong, China)

Abstract: In this study, the adhesive performance of high temperature resistant ceramic binder was studied by means of SEM and universal testing machine. The impacts of high temperature frit materials on the temperature resistance, high temperature mechanical properties and microstructure of the ceramic binder were observed. And the toughening effect of short alumina fiber on the binder was discussed. The ceramic binder resistant to 1600 °C was prepared by compounding the filler of the binder with the high temperature frit and toughening via short alumina fiber with the length to diameter ratio of 20:1. The using temperature of the binder was increased from 1300 °C to 1600 °C. And the maximum shear strength at 1600 °C was 2 MPa. The experimental results showed that the filler compounded with high temperature frit improved the high temperature properties of the binder and that the shear strengths of the binder at room temperature and high temperature were improved by alumina fiber. The mechanism is mainly that the fiber has pulled out from the binder.

Key words: alumina fiber; high temperature frit; ceramic binder