【摘要】 通过XRD ,DTA ,光学显微技术系统研究了 (Zn1 xMgx)TiO3(x=0 1～ 0 4 ) (缩写为ZTM)陶瓷六方钛铁矿结构的热稳定性和相分解反应。实验发现 ,MgO可在宽广烧结温度范围内稳定钛铁矿六方相。但超过合适的烧结温度 ,x<0 2时 ,六方相 (Zn ,Mg)TiO3就会分解为 (Zn,Mg) 2 TiO4 和金红石 ;x >0 2时 ,六方相 (Zn,Mg)TiO3分解为 (Zn ,Mg) 2 TiO4 和 (Zn ,Mg) 2 Ti3O8,这将会引起瓷体的微破裂和致密度的下降更多还原

【Abstract】 The thermal stability and the phase transformation reaction of zinc magnesium titanate,（Zn 1-xMg 1-x）TiO₃（x=0.1～0.4）（ZTM）were investigated by XRD, DTA and optical microscopy analysis. It was found that MgO can stabilize the pure hexagonal phase in a wide sintering range. But preparation should be in a definite sintering temperature range, beyond which the hexagonal phase of （Zn,Mg）TiO₃ would decompose to （Zn,Mg）₂TiO₄,and TiO₂（rutile） when x<0.2 and （Zn,Mg）₂TiO₄,and decompose to（Zn,Mg）₂Ti₃O₈ when x>0.2, which would even induce decrease in densification and microcracks of the specimens.更多还原