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MgAl2O4透明陶瓷的正电子湮没寿命谱研究
Research on MgAl2O4 Transparent Ceramics by Positron Lifetime Spectra Technique
【摘要】 采用正电子湮没寿命谱的方法研宄了 Mg-Al 尖晶石透明陶瓷被电子、质子辐照后的缺陷情况,以及在γ射线辐照下,缺陷情况随γ射线剂量的变化规律。并研究了其退火特性。
【Abstract】 Positron lifetime technique was used to study the defects of MgAl2O4 Transparent ceramics irradi- ated by electrons and protons.Defect of MgAl2O4 transparent ceramics irradiated by -rays was also studied by positron lifetime technique.We get the result that there are three phases with the dose increasing.We examined also the anneal effect.
【关键词】 MgAl2O4;
透明陶瓷;
正电子寿命谱;
缺陷;
【Key words】 MgAl2O4 transparent ceramics; positon lifetime spectra; defects;
【Key words】 MgAl2O4 transparent ceramics; positon lifetime spectra; defects;
【基金】 国家自然科学基金资助(19375033);国家教育部博士点基金(97061030)
- 【文献出处】 材料导报 ,Materials Review , 编辑部邮箱 ,2001年07期
- 【分类号】TQ174
- 【下载频次】47