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151Eu-Mössbauer Spectroscopic Study on Ceramics beloging to ZrO2 – Eu2O3 –Y2O3 System

E. VOLCEANOV1,* , C. PLĂPCIANU2, V. KUNCSER2, A. VOLCEANOV3, B. MATOVIC4, S. MOTOC1

Affiliation

  1. Metallurgical Research Institute, Bucharest, Romania
  2. National Institute for Materials Physics, Măgurele-Bucharest, Romania
  3. University Politehnica of Bucharest, Romania
  4. Institute of Nuclear Science "Vinca", Belgrade, Serbia

Abstract

In the last years the ternary stabilized zirconia ceramics have attracted a considerable attention as a source of materials for structural ceramics. In present paper, the simultaneous influence of Eu3+ and Y3+ cations on zirconia powders (obtained by co-precipitation of aqueous salts solutions) on stabilization process in conjunction with the structural characteristics was investigated.A conventional sintering method (in electric furnace) at 1350 oC temperature range was applied. SEM+EDAX and XPS (X-ray Photoelectron Spectroscopic) analysis were performed. The Eu3+Mössbauer parameters: isomer shift and quadrupole splitting have been obtained for 21.6 keV radiation of 151Eu are in good agreement with the XPS and XRD-obtained crystallographic data of the studied compositions..

Keywords

Zirconia, Mössbauer parameters, Ceramic, Eu2O3, Y2O3.

Submitted at: Feb. 25, 2008
Accepted at: April 4, 2008

Citation

E. VOLCEANOV, C. PLĂPCIANU, V. KUNCSER, A. VOLCEANOV, B. MATOVIC, S. MOTOC, 151Eu-Mössbauer Spectroscopic Study on Ceramics beloging to ZrO2 – Eu2O3 –Y2O3 System, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 891-895 (2008)