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Title: A novel method for the synthesis of zirconia powder

Abstract

A novel method for the synthesis of zirconia powder is presented in this paper. The formation of fine particles of zirconia takes place when metallic zirconium and hematite are heated in the presence of gaseous chlorine. The overall process, which can be described by the following reaction: 3 Zr(s) + 2 Fe{sub 2}O{sub 3}(s) {r_arrow} 3 ZrO{sub 2}(s) + 4 Fe(s), occurs by a mass-transport mechanism through the vapor phase between 723 and 1223 K. The vapor-mass transport among the solid species takes place by means of zirconium and iron chlorides. The fundamentals of synthesis are discussed on the basis of a detailed thermodynamic analysis of reactions involved in the process, as well as by a characterization of the solid phases formed at various temperatures at XRD and SEM examinations.

Authors:
;  [1]
  1. Comision Nacional de Energia Atomica, San Carlos de Bariloche (Argentina)
Publication Date:
OSTI Identifier:
345195
Resource Type:
Journal Article
Journal Name:
High Temperature and Materials Science
Additional Journal Information:
Journal Volume: 37; Journal Issue: 3; Other Information: PBD: Jun 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SYNTHESIS; ZIRCONIUM OXIDES; POWDERS; MASS TRANSFER; PHASE STUDIES; CRYSTAL STRUCTURE

Citation Formats

Bohe, A.E., and Pasquevich, D.M. A novel method for the synthesis of zirconia powder. United States: N. p., 1997. Web.
Bohe, A.E., & Pasquevich, D.M. A novel method for the synthesis of zirconia powder. United States.
Bohe, A.E., and Pasquevich, D.M. Sun . "A novel method for the synthesis of zirconia powder". United States.
@article{osti_345195,
title = {A novel method for the synthesis of zirconia powder},
author = {Bohe, A.E. and Pasquevich, D.M.},
abstractNote = {A novel method for the synthesis of zirconia powder is presented in this paper. The formation of fine particles of zirconia takes place when metallic zirconium and hematite are heated in the presence of gaseous chlorine. The overall process, which can be described by the following reaction: 3 Zr(s) + 2 Fe{sub 2}O{sub 3}(s) {r_arrow} 3 ZrO{sub 2}(s) + 4 Fe(s), occurs by a mass-transport mechanism through the vapor phase between 723 and 1223 K. The vapor-mass transport among the solid species takes place by means of zirconium and iron chlorides. The fundamentals of synthesis are discussed on the basis of a detailed thermodynamic analysis of reactions involved in the process, as well as by a characterization of the solid phases formed at various temperatures at XRD and SEM examinations.},
doi = {},
journal = {High Temperature and Materials Science},
number = 3,
volume = 37,
place = {United States},
year = {1997},
month = {6}
}