Immittance Studies of Bi6Fe2Ti3O18 Ceramics - Publikacja - MOST Wiedzy

Wyszukiwarka

Immittance Studies of Bi6Fe2Ti3O18 Ceramics

Abstrakt

Results of studies focusing on the electric behavior of Bi6Fe2Ti3O18 (BFTO) ceramics are reported. BFTO ceramics were fabricated by solid state reaction methods. The simple oxides Bi2O3, TiO2, and Fe2O3 were used as starting materials. Immittance spectroscopy was chosen as a method to characterize electric and dielectric properties of polycrystalline ceramics. The experimental data were measured in the frequency range D = (101–107) Hz and the temperature range DT = (120–200) C. Analysis of immittance data was performed in terms of complex impedance, electric modulus function, and conductivity. The activation energy corresponding to a non-Debye type of relaxation was found to be EA = 0.573 eV, whereas the activation energy of conductivity relaxation frequency was found to be EA = 0.570 eV. An assumption of a hopping conductivity mechanism for BFTO ceramics was studied by ‘universal’ Jonscher’s law. A value of the exponents was found to be within the “Jonscher’s range” (0.54 n 0.72). The dc-conductivity was extracted from the measurements. Activation energy for dc-conductivity was calculated to be EDC = 0.78 eV, whereas the dc hopping activation energy was found to be EH = 0.63 eV. The obtained results were discussed in terms of the jump relaxation model.

Cytowania

  • 2

    CrossRef

  • 2

    Web of Science

  • 2

    Scopus

Cytuj jako

Słowa kluczowe

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Materials nr 13,
ISSN: 1996-1944
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Lisińska-Czekaj A., Czekaj D., Garbarz-Glos B., Bąk W.: Immittance Studies of Bi6Fe2Ti3O18 Ceramics// Materials -Vol. 13,iss. 22 (2020), s.5286-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/ma13225286
Weryfikacja:
Politechnika Gdańska

wyświetlono 7 razy

Publikacje, które mogą cię zainteresować

Meta Tagi