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Heat capacities of PbBi12O19(s) and ϕ-Pb5Bi8O17(s)
- Source :
-
Thermochimica Acta . Dec2005, Vol. 439 Issue 1/2, p27-31. 5p. - Publication Year :
- 2005
-
Abstract
- Abstract: Heat capacities of PbBi12O19(s) and ϕ-Pb5Bi8O17(s) were measured by differential scanning calorimetry in the temperature range 280–820K and 280–660K, respectively. PbBi12O19(s) and ϕ-Pb5Bi8O17(s) showed order–disorder transitions whose onset temperatures are 520K and 700K, respectively. The measured heat capacities of PbBi12O19(s) and ϕ-Pb5Bi8O17(s) as a function of temperature are expressed as: Enthalpy increments, entropies and Gibbs energy functions were derived from the measured heat capacity data. [Copyright &y& Elsevier]
- Subjects :
- *THERMODYNAMICS
*DYNAMICS
*HEAT
*HIGH temperatures
Subjects
Details
- Language :
- English
- ISSN :
- 00406031
- Volume :
- 439
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Thermochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 19058646
- Full Text :
- https://doi.org/10.1016/j.tca.2005.09.012