Room-temperature mechanical properties of LAST (Pb-Sb-Ag-Te) thermoelectric materials as a function of cooling rate during ingot casting

F. Ren; E.D. Case; B.D. Half

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Room-temperature mechanical properties of LAST (Pb-Sb-Ag-Te) thermoelectric materials as a function of cooling rate during ingot casting

机译：LAST（Pb-Sb-Ag-Te）热电材料的室温机械性能与铸锭过程中冷却速率的关系

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In this study, we focus on the room-temperature mechanical properties of LAST (Pb-Sb-Ag-Te) materials fabricated using casting with slow-cool temperature profiles (cooling rate <5 deg C h~(-1)) including biaxial flexural strength, indentation hardness, Young's modulus, and dynamic elastic moduli. The slow-cooled specimens exhibited values of Young's modulus and hardness that are comparable to those of previously reported fast-cooled LAST materials (cooling rate >5 deg C h~(-1)). The higher biaxial flexural strength is potentially beneficial for the mechanical integrity of thermoelectric devices.

机译：在这项研究中，我们专注于使用慢速温度分布（冷却速率<5℃h〜（-1））（包括双轴）铸造的LAST（Pb-Sb-Ag-Te）材料的室温力学性能。弯曲强度，压痕硬度，杨氏模量和动态弹性模量。缓慢冷却的样品表现出的杨氏模量和硬度值与先前报道的快速冷却的LAST材料相当（冷却速率> 5℃h〜（-1））。较高的双轴弯曲强度可能对热电装置的机械完整性有益。

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《Philosophical Magazine Letters》 |2009年第4期|共9页
作者
F. Ren; E.D. Case; B.D. Half;
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正文语种 eng
中图分类物理学;
关键词
thermoelectric materials; casting; indentation; elasticity; hardness; fracture strength;

机译：热电材料;铸造;压痕;弹性;硬度;断裂强度;

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Room-temperature mechanical properties of LAST (Pb-Sb-Ag-Te) thermoelectric materials as a function of cooling rate during ingot casting

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