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Abstracts
The electrical conductivity σ and the thermal conductivity λ were investigated at varying temperature (40 < T < 120°C) for two sulphate compounds, anhydrous mercury(II) sulphate HgSO_{4} and cerous(III) sulphate Ce_{2}(SO_{4})_{3}·H_{2}O. It seems likely that each of the two sulphate salts undergoes structural phase transition around 90°C. The differential thermal analysis thermogram was carried out as an aid for confirming of the observed phase transitions. The mechanism of the heat transfer is mainly due to phonons. Interpretation of the obtained data was given on the basis of the reorientational motion of the SO_{4}‾ ‾ ions.
Keywords
Journal
Year
Volume
Issue
Pages
187-194
Physical description
Dates
published
1993-02
received
1992-05-12
(unknown)
1992-10-06
Contributors
author
- Physics Department, Faculty of Science, Cairo University, Giza, Egypt
author
- Physics Department, Faculty of Education, Kafr El-Sheik, Egypt
author
- Physics Department, Faculty of Science, Tanta University, Tanta, Egypt
author
- Physics Department, Faculty of Science, Tanta University, Tanta, Egypt
author
- Physics Department, Faculty of Science, Zagazig University, Benha, Egypt
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv83z206kz