Scopus
YÖKSİS DOI Eşleşti
SJR Q1
Activation energy of polarization due to electrical conductivity and dipole rotation in purified ca-bentonite
Applied Clay Science · Temmuz 2012
YÖKSİS Kayıtları
Activation energy of polarization due to electrical conductivity and dipole rotation in purified ca bentonite
Applied Clay Science · 2012 SCI
Prof. Dr. HAZİRET DURMUŞ →
YÖKSİS Kayıtları — ISSN Eşleşmesi
Activation energy of polarization due to electrical conductivity and dipole rotation in purified ca bentonite
2012 ISSN: 01691317 SCI
Prof. Dr. HAZİRET DURMUŞ →
Makale Bilgileri
Dergi
Applied Clay Science
ISSN01691317
Yayın TarihiTemmuz 2012
Cilt / Sayfa62-63 · 70-79
Scopus ID2-s2.0-84861043759
Özet
We determined the activation energy for dipole rotation and electrical conductivity by analyzing the frequency dependent dielectric permittivity measurements of purified Ca-Bentonite. The measurements were performed at four different temperatures between 296. K and 353. K and at frequencies between 5. Hz to 5. MHz. We used the Havriliak-Negami (HN) relation to represent the polarization due to dipole orientations and the Maxwell-Wagner-Sillars (MWS) relation with a power law term to represent the interfacial polarization. We obtained expressions for the real and imaginary parts of electric modulus M *(ω).We determined the relaxation times for HN and MWS contributions from a fit of the experimental data. Subsequently, the activation energies for HN and MWS contributions were obtained from an Arrhenius plot. The activation energy for the HN and MWS processes were found to be 22.3. kJ/mol and 18.2. kJ/mol, respectively. © 2012 Elsevier B.V.
Yazarlar (5)
1
Hayreddin Küçükçelebi
2
Haziret Durmuş
3
Abdullah Deryal
4
Mehmet Taser
5
Necati Karakaya
Anahtar Kelimeler
Activation energy
Ca-bentonite
Dielectric relaxation
Electric modulus
Interfacial polarization
Orientational polarization
Kurumlar
Selçuk Üniversitesi
Selçuklu Turkey
Scimago Dergi (ISSN Eşleşmesi)
Applied Clay Science
Q1
SJR Skoru0,972
H-Index182
YayıncıElsevier B.V.
ÜlkeNetherlands
Geochemistry and Petrology (Q1)
Geology (Q1)
Soil Science (Q1)
Water Science and Technology (Q1)
Metrikler
10
Atıf
5
Yazar
6
Anahtar Kelime