Abstract
Purchase PDF (166 K)
E-mail Article
Add to my Quick Links
Cited By in Scopus (8)
Purchase PDF (950 K)
20 nm. The powder which has crystallite sizes of the same order with the particle size indicates the low agglomeration of crystallites.
doi:10.1016/S0955-2219(99)00045-X 
Copyright © 1999 Elsevier Science Ltd. All rights reserved
A wet-chemical method for the synthesis of in-doped CaZrO3 ceramic powders
References and further reading may be available for this article. To view references and further reading you must purchase this article.
J. Le*, L. N. van Rij, R. C. van Landschoot and J. Schoonman
Received 31 December 1998;
Abstract
Both CaZr0·9In0·1O3-α ceramics and ceramic nano-powders are synthesized starting from a co-precipate formed using a wet-chemical co-precipitation method. The XRD-results confirm that CaZrO3 and CaIn2O4 phases exist after the co-precipitates are calcined at 1273 K for 3 h in air. The CaIn2O4 phase disappears after calcining the powder twice at 1823 K for 10 h in air with the formation of the CaZr0·9In0·1O3-α phase. The XRD pattern of the ceramic powders is the same as that of sintered CaZr0·9In0·1O3-α ceramics (1823 K for 10 h in air). Scanning electron microscopy shows that the ceramic powders calcined at 1273 K for 3 h are nano-sized powders. After sintering at 1823 K for 10 h, the grain-size increases dramatically. EDX results indicate that the Ca:Zr: In ratio in the co-precipitates is close to the theoretical value. The ratio of Ca:In decreases with increasing calcining or sintering temperature. ©
Author Keywords: In-doped CaZrO3; powders-chemical preparation; perovskites.
*To whom correspondence should be addressed.
