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Phase transitions o...
Phase transitions of K2TaF7 within 680-800 degrees C
- Article/chapterEnglish2008
Publisher, publication year, extent ...
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2008-03-01
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Walter de Gruyter GmbH,2008
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-113018
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-113018URI
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https://doi.org/10.2478/s11532-007-0056-2DOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Three thermal effects on heating/cooling of K2TaF7 in the temperature interval of 680-800 degrees C were investigated by the DSC method. The values determined for the enthalpy change of the individual processes are: Delta H-transII(m)(K2TaF7; 703 degrees C) = 1.7(2) kJ mol(-1), Delta H-transI(m)(K2TaF7; 746 degrees C) = 19(1) kJ mol(-1) and Delta H-transIII(m)(K2TaF7; 771 degrees C) = 13(1) kJ mol(-1). The first thermal effect was attributed to a solid-solid phase transition; the second to the incongruent melting of K2TaF7 and the third to mixing of two liquids. These findings are supported by in situ neutron powder diffraction experiments performed in the temperature interval of 654-794 degrees C.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Mackova, Iveta
(author)
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Proks, Ivo
(author)
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Pritula, Ondrej
(author)
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Smrcok, Lubomir
(author)
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Boca, Miroslav
(author)
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Rundlöf, HåkanUppsala universitet,Institutionen för materialkemi(Swepub:uu)hru20273
(author)
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Uppsala universitetInstitutionen för materialkemi
(creator_code:org_t)
Related titles
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In:Central European Journal of Chemistry: Walter de Gruyter GmbH6:1, s. 27-321895-1066
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In:Open Chemistry: Walter de Gruyter GmbH6:1, s. 27-322391-5420
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