Chemical synthesis of pure and Gd-doped CaZrO3 powders


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Gonenli I., Tas A.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol.19, pp.2563-2567, 1999 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19
  • Publication Date: 1999
  • Doi Number: 10.1016/s0955-2219(99)00130-2
  • Title of Journal : JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
  • Page Numbers: pp.2563-2567
  • Keywords: CaZrO3, powders-chemical preparation, X-ray methods, perovskites, CALCIUM ZIRCONATE, TEMPERATURE

Abstract

Aqueous solutions of calcium chloride (CaCl2.2H(2)O) and zirconium oxychloride (ZrOCl2.8H(2)O), in appropriate volumetric amounts, were used as the starting chemicals in the synthesis of phase-pure CaZrO3 powders. Rare earth element dopings (up to 25 at%) were performed by using the aqueous chloride solutions of gadolinium (Gd). Formation of CaZrO3 powders were achieved by two different chemical synthesis techniques: (i) self-propagating combustion synthesis, and (ii) precipitation in the presence of EDTA by the technique of acid-base titration. Sample characterization was performed by powder XRD (Xray diffraction) and SEM (scanning electron microscope). (C) 1999 Elsevier Science Ltd. All rights reserved.