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Characterization of BaTi4O9 ceramics by Raman spectroscopy and XPS after ion etching

NEGRILA CATALIN1,* , MARIN CERNEA1

Affiliation

  1. National Institute for Materials Physics, PO BOX MG-7, Bucharest, RO-77125, Romania

Abstract

Barium tetratitanate (BaTi4O9) ceramic prepared by coprecipitation method was analyzed by Raman spectroscopy and by X-ray photoelectron spectroscopy (XPS). The orthorhombic crystalline structure of BaTi4O9 ceramic sintered at 1300 ºC for 2h in air was identified on the Raman spectrum. The sample was etched in argon plasma and then analysed by XPS. The etching process did not influence significantly the XPS spectra of barium and titan suggesting a good compositional homogeneity of the BaTi4O9 ceramic prepared by oxalate method..

Keywords

Raman spectrum, Barium tetratitanate, XPS spectra, Crystalline structure.

Submitted at: May 19, 2006
Accepted at: Sept. 13, 2006

Citation

NEGRILA CATALIN, MARIN CERNEA, Characterization of BaTi4O9 ceramics by Raman spectroscopy and XPS after ion etching, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 5, pp. 1879-1883 (2006)