Effects of Additives on the Microstructure and Mechanical Properties in Porous Aluminum Titanate Ceramics

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J. Korean Ceram. Soc. > Volume 31(2); 1994 > Article

Journal of the Korean Ceramic Society 1994;31(2): 137.

각종 첨가제가 다공성 Aluminum Titanate Ceramics의 미세구조 및 기계적 특성에 미치는 영향

김병훈, 나용한

전남대학교 무기재료공학과

Effects of Additives on the Microstructure and Mechanical Properties in Porous Aluminum Titanate Ceramics

ABSTRACT

This experiments were focused on a modification of mechamical properties and structure in porous aluminum titanate ceramics by new additives which have been not researched yet. These were consisted of four kinds of additives i.e. Bi2O3, FeO, ZnO and NiO by addition amount of 1 wt% and 5 wt% respectively. The addition of Bi2O3 retarded a degree of syntehsis of aluminum titanate and accelerated in FeO, ZnO, NiO additives. Also, the most effective accelerator in synthesis of alunium titanate was FeO. A additives for the most effective of modification of microstructure, sharp distribtion of pore size and mechanical proterties was on ZnO addition and showed the lowest average pore size and narrowed pore size distribution. In order to improve of microstructure and pore size distribution in porous aluminum titanate ceramics was desired the addition amount of 1 wt% compare to 5 wt%.