भारतीय प्रौद्योगिकी संस्थान दिल्ली
Indian Institute of Technology, Delhi
  • Login
View Item 
  •   Home
  • Faculty Research Publications
  • Physics
  • View Item
  •   Home
  • Faculty Research Publications
  • Physics
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Temperature dependence of electrical properties of nickel–zinc ferrites processed by the citrate precursor technique

Thumbnail
View/Open
vermatem2005.pdf


Collections
  • Physics [342]
Metadata
Show full item record
Author: Verma, A; Thakur, O P; Prakash, C; Goel, T C; Mendiratta, R G

Advisor: Advisor

Date: 2005

Publisher:
Citation: Materials

Series/Report no.:
Item Type: Article

Keywords: Nickel–zinc ferrites; Citrate precursor technique; Activation energy; Dielectric constant; Dielectric loss; Temperature

Abstract: Temperature dependence of resistivity, dielectric constant and dielectric loss have been investigated for four different compositions of nickel–zinc ferrites, Ni1−xZnxFe2O4 (x = 0.2, 0.35, 0.5 and 0.6), prepared by the citrate precursor technique. Activation energies calculated from the resistivity versus temperature curves for the compositions sintered at 1200 °C and 1300 °C range from 0.55 eV to 0.73 eV. Samples sintered at 1200 °C exhibit higher activation energies and low dielectric losses compared to those sintered at 1300 °C. Samples of the composition with x = 0.6 show low dielectric losses up to a measurement temperature of around 200 °C at higher frequencies as compared to samples of other compositions. The variations in activation energy with composition and sintering temperature have been explained on the basis of the site occupancy in ferrites and the atomic radii of the constituent metal ions.
Contact Us
Shankar B. Chavan
Computer Applications Division
Central Library, IIT Delhi
shankar.chavan@library.iitd.ac.in
NDLTD
Shodhganga
NDL
ePrints@IISc
etd@IISc
IR@IIT Bombay
NewsClips @IITD
  • Facebook
  • twitter
  • youtube
  • instagram
  • pinterest
  • Linkedin

Browse

All of IITDCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister
Contact Us
Shankar B. Chavan
Computer Applications Division
Central Library, IIT Delhi
shankar.chavan@library.iitd.ac.in
NDLTD
Shodhganga
NDL
ePrints@IISc
etd@IISc
IR@IIT Bombay
NewsClips @IITD
  • Facebook
  • twitter
  • youtube
  • instagram
  • pinterest
  • Linkedin