直接结晶法生长Bi/sub - 2/Te/sub - 3基异型晶体的结构和力学性能

Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589) Pub Date : 2001-06-08 DOI:10.1109/ICT.2001.979838

S.M. Manyakin, M. Volkov

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引用次数: 2

摘要

研究了用直接结晶法生长成平板形式的Bi/sub - 2/Te/sub - 3基热电材料的晶体结构特性。估计了生长晶体结构不完善的临界参数G/V /sub cr/值。给出了不同结晶取向下的机械拉伸、压缩和弯曲实验结果。结果表明，材料的力学性能与晶体结构密切相关。

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Crystalline structure and mechanical properties of Bi/sub 2/Te/sub 3/-based profiled crystals grown by direct crystallization method

Crystalline structure peculiarities of Bi/sub 2/Te/sub 3/-based thermoelectric materials grown in the form of flat plates by the direct crystallization method are examined. Values of the critical parameter (G/V)/sub cr/ under which the structure perfection of growing crystals becomes poor are estimated. Experimental results of mechanical tension, compression and bending tests carried out in different crystallographic orientations are presented. It is shown that the mechanical characteristics of materials are closely connected with crystalline structure.

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Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)

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