|
|||||
|
|
| 机械化学方法进行钇掺杂Zn4 Sb3的相组成和相变 | |
| 引用本文： | 肖忠良,湛雪辉,刘丹,陈启元,尹周澜.机械化学方法进行钇掺杂Zn4 Sb3的相组成和相变[J].湖南师范大学自然科学学报,2008,31(4). |
| 作者姓名： | 肖忠良 湛雪辉 刘丹 陈启元 尹周澜 |
| 作者单位： | 1. 长沙理工大学化学与生物工程学院,中国,长沙,410076;中南大学化学化工学院,中国,长沙,410083 2. 长沙理工大学化学与生物工程学院,中国,长沙,410076 3. 中南大学化学化工学院,中国,长沙,410083 |
| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金，湖南省自然科学基金 |
| 摘 要： | 通过机械化学方法制备了Zn4Sb3和钇掺杂的Zn4Sb3试样.试样的相组成和相变过程分别采用X射线衍射(XRD),扫描电镜(SEM)和差示扫描量热(DSC)方法进行研究.扫描电镜结果显示,颗粒大小随钇掺杂量增加而减少,直到(Zn1-xYx)4Sb3中钇的摩尔分数达到x=0.02.X射线衍射结果表明,当x=0.02时Zn4Sb3的百分含量达到最大.DSC结果表明,钇掺杂以后的试样球磨相同的12 h,相变温度从820 K变化到825 K,最大峰值减小. |
| 关 键 词： | 金属间化合物 热性质 机械合金化 粉末冶金 微观结构 |
The Phase Composition and Transformation of Y-doped Zn4Sb3 Prepared by Mechanochemical Method |
|
| XIAO Zhong-liang,ZHAN Xue-hui,LIU Dan,CHEN Qi-yuan,YIN Zhou-lan.The Phase Composition and Transformation of Y-doped Zn4Sb3 Prepared by Mechanochemical Method[J].Journal of Natural Science of Hunan Normal University,2008,31(4). | |
| Authors: | XIAO Zhong-liang ZHAN Xue-hui LIU Dan CHEN Qi-yuan YIN Zhou-lan |
| Abstract: | We prepare the samples of Zn4Sb3 and Y-doped Zn4Sb3 by the mechanochemical method.The phase composition and transformation in this alloy system during mechanical alloying is investigated with X-ray diffraction(XRD),Scanning electron micrographs(SEM) and differential scanning calorimetry(DSC) respectively.The results of SEM shows that the particle size decrease with increasing of Y-doped amount untile molar fraction of Yttrium(Y) x=0.02 in(Zn1-xYx)4Sb3.XRD results indicate that the percentage composition of Zn4Sb3 become largest in x=0.02.DSC results shows that the transition temperature alter from 820 K to 825 K and the peak area decrease after doping Y grinding the same 12 h. |
| Keywords: | intermetallics miscellaneous thermal properties mechanical alloying and milling powder metallurgy microstructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |