CAJ | 학술논문

综述了 Si3 N4陶瓷高热导性的研究现状及发展趋势。通过综合分析指出，晶间相和晶格氧是影响 Si3 N4陶瓷热导率的主要因素，减少晶间相数量、优化晶间相分布以及减少晶格氧含量均能提高 Si3 N4陶瓷热导率，今后的研究趋势是选择合适的原料和烧结助剂。
종술료 Si3 N4도자고열도성적연구현상급발전추세。통과종합분석지출，정간상화정격양시영향 Si3 N4도자열도솔적주요인소，감소정간상수량、우화정간상분포이급감소정격양함량균능제고 Si3 N4도자열도솔，금후적연구추세시선택합괄적원료화소결조제。
This paper deals with the recent developments of high thermal conductivity silicon nitride ceramics. The factors reducing the thermal conductivity include grain boundary phases of low thermal conductivity and lattice defeats in Si3 N4 crystals.In this paper,reducing the number of grain boundary phase and the amount of lattice oxygen,changing the way of grain boundary phases exist are discussed to choose the suitable raw materi-al and sintering additive,and high thermal conductivity Si3 N4 ceramic can be obtained.