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Erschienen in:
1984 | OriginalPaper | Buchkapitel
Sintering of LiF Fluxed SrTiO3
verfasst von : Harlan U. Anderson, Marie C. Proudian
Erschienen in: Materials Science Research
Verlag: Springer US
Enthalten in: Professional Book Archive
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The densification of SrTiO3 using LiF as a sintering aid was investigated. In the temperature range 700 to 900°C, the sintering kinetics of ½ to 2w% LiF doped SrTiO3 appears to be controlled by liquid phase sintering. Densification was found to be a function of cation stoichiometry and temperature as well as LiF content. For example, 2w% LiF additions with 4 hour sintering at 910°C, specimens of composition Sr1.03TiO3 achieved a density of 96% TD, whereas, for the same treatment of those of compositions Sr98 TiO3 achieved only 75% TD. The interaction between LiF and SrTiO3 is very complex and both X-ray diffraction and weight loss measurements suggest that it might involve the formation of Li and F containing compounds.