以Si3N4和Si粉为主要原料,Al2O3、Y2O3等为助剂,制备Si3N4料浆,用有机前驱体浸渍结合二次烧成工艺制备具有网络结构的多孔氮化硅陶瓷材料.研究了前驱体的预处理方式、料浆的流变性能对挂浆效果的影响；干燥制度对坯体性能的影响；硅粉含量和烧成制度对试样性能的影响.用XRD、SEM、XEDS等对材料的显微结构和晶相进行分析,研究烧成制度对试样性能产生影响的原因,以利于更好地优化工艺.
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