Paper Title:
Thermal Expansion and Oxidation of Calcium Oxysulfides by Diffusion
  Abstract

The iron and zinc calcium oxysulfides Ca3Fe4S3O6, CaFeSO and CaZnSO are synthesized by reacting mixtures of CaO and FeS or of CaO and ZnS in an inert atmosphere. Their elemental compositions and lattice parameters are determined by X-ray microanalysis and X-ray diffraction. From the temperature-dependent lattice parameters of oxysulfides (measured up to 1170K) their thermal expansion coefficients are evaluated. Oxidation Ca3Fe4S3O6 and CaZnSO are studied by thermogravimetric analysis when air heated. Oxidation speed temperature coefficients showing that process limiting stage is diffusion are determined.

  Info
Periodical
Defect and Diffusion Forum (Volumes 258-260)
Edited by
Andreas Öchsner and José Grácio
Pages
316-321
DOI
10.4028/www.scientific.net/DDF.258-260.316
Citation
E. N. Selivanov, R.I. Gulyaeva, V.M. Chumarev, N.I. Selmenskikh, "Thermal Expansion and Oxidation of Calcium Oxysulfides by Diffusion", Defect and Diffusion Forum, Vols. 258-260, pp. 316-321, 2006
Online since
October 2006
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Price
$32.00
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