Skip to main content

Impedance Spectroscopy Studies of Fresnoites in BaO–TiO2–SiO2 System

Buy Article:

$43.00 plus tax (Refund Policy)

The electrical properties of the fresnoite BaO–TiO2–SiO2 system were studied over a range of amorphous and crystalline microstructures using as-quenched glass (BTS-gl), partially crystallized glass (BTS-pc, heat treated at 740°C for 100 min) and fully crystallized glass ceramic (BTS-gc, heat treated at 750°C for 180 min). Combination of impedance and moduli plots along with equivalent circuit models were utilized in an attempt to understand the contributions arising from different regions in the glass ceramic, i.e. the glassy matrix, crystalline phase, and crystal–glass interface region. Electrical conductivity of the samples exhibited frequency dispersions at different temperatures suggesting localized motion of ions. The activation energies calculated from dc resistivity–temperature plots (Edc) and relaxation frequency–temperature plots (Ef) seem to increase as the degree of crystallinity increases suggesting that ionic transport becomes more difficult in crystallized glasses.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Document Type: Research Article

Affiliations: Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802

Publication date: 2010-02-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more