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Structural and electrical properties of yttrium-doped ceria ceramic composites

A. M. IONASCU1, I. MERCIONIU2,* , P. V. NOTINGHER1, N. POPESCU-POGRION2

Affiliation

  1. University Politehnica of Bucharest, 060042, Romania
  2. National Institute of Materials Physics, Magurele-Bucharest, 077125, Romania

Abstract

The attractive properties of Yttria doped ceria, particularly the structural and material properties, have led to vast research efforts to investigate and develop such materials. One of the main applications of this ceramic is in the IT-SOFC. The aim of this paper is the preparation and characterization of Y doped Ceria and low doped α-Al2O3, a new composite for IT-SOFC (10 mol %) Y:CeO2 and (150 ppm) Y:α-Al2O3 composite were obtained by sol-gel or mechanical route for 10YDC and 150 Y:α-Al2O3. Shapes, size distributions and the mean of grains were determined by SEM, EDX and statistical investigations..

Keywords

Ceramic composite, Y:CeO2, Y:Al2O3.

Citation

A. M. IONASCU, I. MERCIONIU, P. V. NOTINGHER, N. POPESCU-POGRION, Structural and electrical properties of yttrium-doped ceria ceramic composites, Optoelectronics and Advanced Materials - Rapid Communications, 5, 7, July 2011, pp.773-777 (2011).

Submitted at: June 2, 2011

Accepted at: July 25, 2011