日本金属学会 2020年春期(第166回)講演大会

Presentation information

General Session

10. Energy and Related Materials » Thermoelectric Materials

[G] Thermoelectric Materials

Wed. Mar 18, 2020 9:30 AM - 11:55 AM Rm. P (W934,3rd Flr., West Bldg.9)

Chair:Yoshiki Takagiwa(National Institute for Materials Science), Tsunehiro Takeuchi

11:25 AM - 11:40 AM

[392] Effect of High Pressure Torsion on Thermoelectric Performance
of Off-stoichiometric Fe2VAl Alloys with Ta Doping

*FUKUTA KODAI1, TSUCHIYA KOICHI2, MIYAZAKI HIDETOSHI3, NISHINO YOICHI3 (1. Nagoya Inst. Tech(M1), 2. NIMS, 3. Nagoya Inst. Tech)

Keywords:Fe2VAl、熱電変換材料、ホイスラー化合物、高圧ねじり加工

V/Al非化学量論組成をベースとしてVをTaで部分置換したFe2V1+x-yTayAl1-x合金の熱電特性を評価し,その中で最もZTが高いFe2V0.98Ta0.10Al0.92についてHPT加工を施すことで熱伝導率低減による熱電性能の向上を図った

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