节点文献

(Bi2Te3)0.90(Sb2Te30.05(Sb2Se30.05热压合金微观结构和电学性能相关性研究

Microstructures and electrical properties of the hot-pressed(Bi2Te30.90(Sb2Te30.05(Sb2Se30.05 alloys

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 吕强胡建民信江波荣剑英

【Author】 LU¨ Qiang~(1, 2),HU Jian-min~1,XIN Jiang-bo~1,RONG Jian-ying~1(1 Department of Physics, Harbin Normal University, Harbin Helongjiang 150025;2 Division of Electronic Technology, Mudanjiang Medical College, Mudanjiang Heilongjiang 157011,China)

【机构】 哈尔滨师范大学物理系哈尔滨师范大学物理系 黑龙江哈尔滨150025牡丹江医学院电子技术教研室黑龙江牡丹江157011黑龙江哈尔滨150025黑龙江哈尔滨150025

【摘要】 通过熔炼 研磨制备N型(Bi2Te3)0 90(Sb2Te3)0 05(Sb2Se3)0 05热电材料的粉末,热压制备混合粉末热压合金。通过SEM和XRD研究热压合金的微观结构,在室温测量热压合金样品的电学性能。结果表明热压合金在微观结构和电学性能上存在各向异性,从而预示能够在增强材料机械强度的同时提高其热电性能。

【Abstract】 The microstructures of N-type(Bi2Te30.90(Sb2Te30.05(Sb2Se30.05 alloys, prepared by melting/grinding and hot-pressing procedures at 210℃ under 442MPa using mixed powders in different range of grain sizes, were observed in different directions to the pressing direction by SEM and XRD. The electrical properties of the hot-pressed alloys were measured at room temperature. The results show that the grains of the hot-pressed alloys are preferentially oriented.The hot-pressed alloys are anisotropy in the microstructures and electrical properties.

【基金】 教育部科学技术研究重点项目(No.00163);哈尔滨市重点科技攻关计划项目(No.01112110024);黑龙江省教育厅科学技术计划项目(No.10541091).
  • 【文献出处】 电子显微学报 ,Journal of Chinese Electron Microscopy Society , 编辑部邮箱 ,2004年05期
  • 【分类号】O472
  • 【被引频次】4
  • 【下载频次】179
节点文献中: