Microstructure And Thermoelectric Properties Of TAGS-90 Compounds Fabricated By Mechanical Milling Process

• Autorzy: Kim H.-S. , Babu M. , Hong S.-J.

Identyfikatory

DOI

10.1515/amm-2015-0104

Warianty tytułu

PL

Mikrostruktura i właściwości termoelektryczne związków TAGS-90 wytworzonych przez mielenie

• Języki publikacji: EN

Abstrakty

EN

TAGS-90 compound powder was directly prepared from the elements by high-energy ball milling (HEBM) and subsequently consolidated by a spark plasma sintering (SPS). Effect of milling time on the microstructure and thermoelectric properties of the samples were investigated. The particle size of fabricated powders were decreased with increasing milling time, finally fine particles with ~1μm size was obtained at 90 min. The SPS samples exhibited higher relative densities (>99%) with fine grain size. X-ray diffraction analysis (XRD) and energy dispersion analysis (EDS) results revealed that all the samples were single phase of GeTe with exact composition. The electrical conductivity of samples were decreased with milling time, whereas Seebeck coefficient increased over the temperature range of RT~450°C. The highest power factor was 1.12×10^-3 W/mK² obtained for the sample with 90 min milling at 450°C.

Słowa kluczowe

EN

TAGS-90; thermoelectric properties; high-energy milling; SPS

PL

TAGS-90; właściwości termoelektryczne; mielenie wysokoenergetyczne; SPS

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1231--1234
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Kim H.-S.

• Division of Advanced Materials Engineering, Kongju National University, Cheonan, Republic of Korea

autor

Babu M.

• Division of Advanced Materials Engineering, Kongju National University, Cheonan, Republic of Korea

autor

Hong S.-J.

• Division of Advanced Materials Engineering, Kongju National University, Cheonan, Republic of Korea

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.