POINT DEFECTS AND CATION TRACER DIFFUSION IN (TIXFE1-X)3-δO4 1. NON-STOICHIOMETRY AND POINT DEFECTS

dc.contributor.author	Aggarwal S.
dc.contributor.author	Dieckmann R.
dc.date.accessioned	2021-06-03T06:25:21Z
dc.date.available	2021-06-03T06:25:21Z
dc.date.issued	2002
dc.identifier	https://elibrary.ru/item.asp?id=1379924
dc.identifier.citation	Physics and Chemistry of Minerals, 2002, 29, 10, 695-706
dc.identifier.issn	0342-1791
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/28818
dc.description.abstract	The deviation from stoichiometry, δ, in spinel solid solutions of the type (TixFe1-x)3-δ O4 with x=0.1, 0.2 and 0.25 was studied thermogravimetrically as a function of oxygen activity, aO2, at 1100, 1200 and 1300 °C. The experimental results, S-shaped curves for δ vs. log aO2, are presented and discussed with regard to the type of point defects prevailing under different conditions in the deviation from stoichiometry. It is concluded that cation vacancies are the predominant point defects at high oxygen activities, while cation interstitials prevail at low oxygen activities. The temperature and composition dependencies of point defect concentrations are also discussed.
dc.subject	MAGNETITE
dc.subject	ULVOSPINEL
dc.subject	NONSTOICHIOMETRY
dc.subject	POINT DEFECTS
dc.title	POINT DEFECTS AND CATION TRACER DIFFUSION IN (TIXFE1-X)3-δO4 1. NON-STOICHIOMETRY AND POINT DEFECTS
dc.type	Статья

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