广西科学Issue(5)：481-484,4.
PbTe 热电材料的合金化研究
Alloying Investigation of PbTe Thermoelectric Materials
摘要
Abstract
[Objective]Alloying methods were explored for PbTe thermoelectric materials.[Methods]High energy mechanical ball milling method and high frequency melting method were used to prepare PbTe thermoelectric materials.Firstly,the fractions of the samples and the milling time were adjusted to obtain the high quality samples.Secondly,the high frequency melting method was used to prepare the PbTe samples.Finally,the X-ray diffraction (XRD) and scanning electron microscope (SEM)were employed to obtain the crystal information and micro-morphology.[Results]The crystallinity of the PbTe prepared by mechanical alloying was obviously lower than that of high frequency melting.After annealing,the crystallinity of me-chanical alloying was also lower than that of high frequency melting,but the crystallinity of mechanical alloying was increased during the annealing.The annealed bulk PbTe had lots of de-fects and lattice distortion.[Conclusion]The crystallinity of the PbTe prepared by mechanical alloying was obviously lower than that of high frequency melting.关键词
PbTe/热电材料/机械合金化/高频熔炼Key words
PbTe thermoelectric materials/mechanical alloying/high frequency melting分类
矿业与冶金引用本文复制引用
陶小马,秦鹏,王自茹,谭旺,王戎丞,欧阳义芳..PbTe 热电材料的合金化研究[J].广西科学,2015,(5):481-484,4.基金项目
国家自然科学基金项目（11047031，51201039）和广西自然科学基金项目（2011GXNSFC018003）资助。 （）
