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Reduction of lattice thermal conductivity of pseudogap intermetallic compound Al 3 V
Author(s) -
Kumagai Masaya,
Kurosaki Ken,
Ohishi Yuji,
Muta Hiroaki,
Yamanaka Shinsuke
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201552650
Subject(s) - intermetallic , materials science , thermal conductivity , thermoelectric effect , thermoelectric materials , lattice (music) , pseudogap , condensed matter physics , metallurgy , thermodynamics , optoelectronics , composite material , physics , alloy , doping , acoustics , cuprate
One of the obstacles to the widespread use of thermoelectric (TE) generators is the toxicity of current TE materials. Hence, we focused on Al‐based materials as candidate low‐toxicity TE materials. Although Al‐based materials have high power factor (PF), the achievement of high TE performance is difficult because of the high lattice thermal conductivity ( κ lat ). The aims of the present study are to investigate the TE properties of Al 3 V, and to enhance TE performance by κ lat reduction. We found that Ti substitution decreases the κ lat and increases the PF of Al 3 V.