Sb-Se系和Ge-Sb-Te系粉末材料热力学参数测试

Thermodynamic Parameters of Sb-Se-based and Ge-Sb-Te-based Phase Change Optical Disk Recording Media

利用DSC对Sb Se系和Ge Sb Te系粉末热力学参数进行了研究 ,对于Sb Se系合金 ,仅在温度为 2 2 0℃左右时出现一个放热峰 ,而对于GeSb2 Te4 与GeSb4 Te4 合金 ,分别在 140℃及2 0 0℃左右各出现一个放热峰 。

By DSC,thermodynamic parameters of Sb Se based and Ge Sb Te based phase change optical disk recording media are studied.The results of DSC testing show that only one exothermal peak appears in the DSC curve for Sb Se based alloy.the corresponding temperature is about 220℃.However,two exothermal peaks appear in the DSC curve for alloys GeSb 2Te 4 and GeSb 4Te 4.The corresponding temperatures are 140℃ and 200℃ respectively,and there is a slight difference depending on the heating rate.