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 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19
  • Publication Date: 1999
  • Doi Number: 10.1016/s0955-2219(99)00130-2
  • Journal Name: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2563-2567
  • Keywords: CaZrO3, powders-chemical preparation, X-ray methods, perovskites, CALCIUM ZIRCONATE, TEMPERATURE
  • Middle East Technical University Affiliated: No

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.