Multi-scale study of the deformation mechanisms of thermoelectric p-type half-Heusler Hf0.44Zr0.44Ti0.12CoSb0.8Sn0.2

• Published in: Journal of applied physics Vol. 124; no. 17
• Main Authors: Aumand, Matthieu, Amiard, Guillaume, He, Ran, Ren, Zhifeng, White, Ken W., Thilly, Ludovic
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 07.11.2018
• Subjects: Applied physics; Back propagation; Bulk sampling; Compression tests; Confining; Crack propagation; Crack tips; Deformation analysis; Deformation mechanisms; Dislocations; Failure analysis; Failure mechanisms; Figure of merit; Fracture mechanics; Fracture toughness; Mesoscale phenomena; Metallurgy; Modulus of elasticity; Multiscale analysis; Nanoindentation; Stress propagation; Stress-strain curves; Stress-strain relationships; Thermoelectricity

Increasing the figure of merit ZT of thermoelectric (TE) alloys is a challenge that is currently attempted through various metallurgy methods, including nanostructuring and dislocation engineering. Microstructures with such a level of complexity raise questions about the mechanical reliability of th...