在采用传统固相法预合成Mg2SiO4和MgTiO3粉体的基础上,在H2气氛下常压烧结制备了Mg2SiO4-MgTiO3-SiC复相材料.研究了Mg2SiO4和MgTiO3的最佳原料配比及MgTiO3的添加量、烧结温度、保温时间对复相材料烧结性能和相组成的影响.结果表明:Mg2SiO4粉的最佳Mg/Si物质的量比为2.02,MgTiO3粉的最佳Mg/Ti物质的量比为1,Mg2SiO4-MgTiO3-SiC复相材料的相组成为Mg2SiO4、MgTiO3和6H-SiC; MgTiO3的加入可促进材料烧结,最佳保温时间为1h.
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