The unstable thermoelectric effect in non-stoichiometric Cu2Se during the non-equilibrium phase transition - Publikacja - MOST Wiedzy

Twoje konto

zaloguj

Wyszukiwarka

The unstable thermoelectric effect in non-stoichiometric Cu2Se during the non-equilibrium phase transition

Abstrakt

The superionic α ↔ β phase transition in Cu1.96Se thermoelectric material is investigated by means of thermal analysis (DSC) and measurements of Seebeck coefficient and electrical conductivity. Results of the DSC measurements with 1–10 K/min heating and cooling rates show that the material is close to the equilibrium phase composition during the transformation. However, the kinetic limitation of the process exists, which is indicated by supercooling. At the beginning of the β → α transition, the most significant kinetic delay was attributed to the nucleation of the α phase. During the phase transformation, the Seebeck coefficient was lower than in a stabilised material (measured with 0.1 K/min heating/cooling rate). During cooling, a decrease from 130 μV/K (in a stabilised measurement) to 7 μV/K (5 K/min cooling rate) was observed. The deviation from the expected values of the Seebeck coefficient was correlated with the difference between the actual and equilibrium phase compositions.

Cytowania

  • 2

    CrossRef

  • 0

    Web of Science

  • 2

    Scopus

Autorzy (3)

Cytuj jako

Pełna treść

pobierz publikację
pobrano 60 razy
Wersja publikacji
Accepted albo Published Version
Licencja
Creative Commons: CC-BY otwiera się w nowej karcie

Słowa kluczowe

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
JOURNAL OF MATERIALS SCIENCE nr 56, strony 13705 - 13714,
ISSN: 0022-2461
Język:
angielski
Rok wydania:
2021
Opis bibliograficzny:
Trawiński B., Łapiński M., Kusz B.: The unstable thermoelectric effect in non-stoichiometric Cu2Se during the non-equilibrium phase transition// JOURNAL OF MATERIALS SCIENCE -Vol. 56, (2021), s.13705-13714
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s10853-021-06170-z
Źródła finansowania:
Weryfikacja:
Politechnika Gdańska

Powiązane datasety

wyświetlono 119 razy

Publikacje, które mogą cię zainteresować

Ionic thermoelectric effect in Cu2-δSe during phase transition

2023

Structure and thermoelectric properties of nickel-doped copper selenide synthesised in a hydrogen atmosphere

2021

Effect of isovalent substitution on microstructure and phase transition of LaNb1−xMxO4 (M=Sb, V or Ta; x=0.05–0.3)

2014

Ab initio chemical kinetics of Isopropyl acetate oxidation with OH radicals

  • M. A. Abdel-Rahman,
  • M. F. Shibl,
  • A. Shiroudi
  • + 1 autorów
2023
Meta Tagi