Skip to main content

New Family of Dielectric Materials in Ca–Y–Ti–Nb–O System Having Pyrochlore Type Structure

Buy Article:

$51.00 plus tax (Refund Policy)


A new family of pyrochlore-type oxides in the Ca–Y–Ti–Nb–O system has been prepared by the conventional solid-state route. These compounds have a dielectric constant (K) in the range 27–92 and, further, the dielectric properties are found to be independent of frequency in the 100 Hz to 1 MHz range for all the compositions in the temperature range 30°–100°C. Their temperature coefficient of the dielectric constant is negative and in the range −80 to −612 ppm/°C. Rietveld analysis of the X-ray diffraction data establishes a cubic pyrochlore-type phase in the space group Fd3m (no. 227). A variation in the stoichiometry of the cations in the system does not change the pyrochlore-type structure.

Document Type: Research Article


Affiliations: Materials and Minerals Division, Regional Research Laboratory, Trivandrum 695 019, India

Publication date: 2007-11-01

  • 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
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