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HERO ID
334610
Reference Type
Journal Article
Title
Room-temperature mechanical properties of LAST (Pb-Sb-Ag-Te) thermoelectric materials as a function of cooling rate during ingot casting
Author(s)
Ren, F; Case, ED; Hall, BD; Ni, JE; Timm, EJ; Wu, CI; D'Angelo, JJ; Hogan, TP; Lara-Curzio, E
Year
2009
Volume
89
Issue
4
Page Numbers
267-275
Abstract
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°C h[sub]-1[/sub]) 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°C h[sub]-1[/sub]). The higher biaxial flexural strength is potentially beneficial for the mechanical integrity of thermoelectric devices. (English)
Keywords
Matériau thermoélectrique; Propriété dynamique; Lingot; Antimoine Argent Plomb Tellurure Mixte; Module élasticité; Module Young; Dureté; Indentation; Résistance flexion; Coulée en moule; Charge biaxiale; Vitesse refroidissement; Propriété mécanique; Thermoelectric materials; Dynamic properties; Ingot; Antimony Silver Lead Tellurides Mixed; Elastic modulus; Young modulus; Hardness; Flexural strength; Casting; Biaxial load; Cooling rate; Mechanical properties; Propiedad dinámica; Lingote; Mixto; Carga biaxial
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