摘要
通过固相法以 Mg Ti2 O5为稳定剂合成了 Al2 ( 1 - x) Mgx Ti1 + x O5(简称 AMT) (x=0 ,0 .0 1,0 .0 5 ,0 .1,0 .3)体系固溶体粉末。研究了该固溶体粉末的物相组成、以及热分解性能与 x值变化的关系。采用无压烧结法研究了 Mg Ti2 O5的存在对 Al2 Ti O5烧结致密度的影响。粉末 X射线衍射结果表明随着 x值的增大 ,固溶体 AMT晶格常数线性增大、热稳定性越高。当 x=0 .0 5时 ,将该固溶体在 110 0℃保温 10 h,仅有 9%的分解率。通过密度测试 ,结果显示随着 Mg Ti2 O5的增加 ,烧结体的致密度增大 ,表明 Mg Ti2
We researched the thermal performance of AT with the addition MgTi 2O 5 in order to restrain the decomposition of AT,because AT inclines to decompose. The solid solutions Al 2(1- x ) Mg x Ti 1+ x O 5( x =0,0.01,0.05,0.1,0.3)were fabricated by the solid method, and the solid solutions were sintered without the pressure. We also researched the relation of x value and the components,thermal performance of the solid solution. The results indicated that with the rise of x value the crystal lattice constants and thermal stability increase. When x =0.05 the compositional fraction of AT only was 9% at the temperature 1 100 ℃ for ten hours. Finally, the sintered effect of AT with M2T was researched.
出处
《武汉理工大学学报》
CAS
CSCD
2002年第4期1-4,共4页
Journal of Wuhan University of Technology
基金
清华大学新型陶瓷与精细工艺国家重点实验室开放基金
