相变光盘记录介质Sb-Se系和Ge-Sb-Te系合金组织及结构

Microstructure and Structure of Sb-Se-based and Ge-Sb-Te-based Phase Change Optical Disc Recording Media

按照配方熔炼制成Sb Se系和Ge Sb Te系合金 ,对其组织结构进行了观察测试。研究结果表明 ,制备的合金组织比较均匀 ,X射线衍射结果表明 ,Sb Se系合金 1#样品有Sb析出 ,2 #样品有Se析出 ,符合化学计量比的 3#样品全部形成Sb2 Se3共晶体。Ge Sb Te系合金 5#样品有Sb析出 ,而符合化学计量比的 4 #样品形成GeSb2 Te4 共晶体。

Sb Se and Ge Sb Te series alloys were prepared by melting method according to the composition. Their microstructure and structure were investigated. The result showed that the microstructure of alloys was homogeneous. The X ray diffraction result showed that the Sb and the Se precipitated from the specimens 1 # and the specimens 2 # of Sb Se series alloy respectively, while the specimens 3 # in the stoichiometric compositions of Sb Se series alloys appeared the eutectic Sb 2Se 3 entirely. The Sb precipitated from the specimens 5 # of Ge Sb Te series alloys, while the specimens 4 # in the stoichiometric compositions of Ge Sb Te series alloys appeared the eutectic GeSb 2Te 4 entirely.