作者用 X 射线衍射仪法定量分析了 Al_2O_3-MgO·2T1O_2复合物系在烧结过程中的物相变化及烧结体的物相组成和晶格参数。探讨了(Al_(2(1-x))Mg_xTi_(1+x)O_5型固溶体的形成机制。通过扫描电镜和偏光显微镜观测烧结体的微观组织,结合弯曲强度及热膨胀、收缩性能,讨论了烧结体组成、结构与性能之间的相互关系。

Structure and Properties in Al_2O_3·TiO_2-MgO·2TiO_2 Ceramic System Zhang Lianmeng Yu Maoli Li LixinIn the system of Al_2 O_3 ·TiO_2-MgO·2TiO_2,phase transition,phase composition and lattice pa- rameters during sintering process are quantitatively analysed by XRD.The mechanism of fo rmation in [Al_(2(1-x))Mg_x T_i(1+x)]O_5 solid solution is studied. Examining the microstructure by SEM and OM,testing the bending strength and thermal expan- sion characteristic.There are some discussions on the relationships among composition,structure and Properties.Solid solution;;Crstal domain;;Crack