| 摘要 |
PURPOSE:To provide a material composition of a member for a pulverizer such as a lining material, a container or media, hardly worn not as the member for the pulverizer without being restricted by pulverizing conditions, etc. CONSTITUTION:The objective member is completed by finding a silicon nitride- based sintered compact to satisfy the requirements. This sintered compact has three conditions of firstly including an oxide such as Al2O3 or Y2O3 as a sintering assistant and substantially >=80wt.% sialon, secondly >=0 and <3.5 Z value of sialon and thirdly >=2.8g/cm<3> bulk density of the sintered compact as essential requirements. Thereby, the objective sintered compact for the member such as container of fine pulverizer, a lining material or media, excellent in strength and abrasion resistance and further toughness with hardly any abrasion wear is obtained. |
