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Model for evaluating and predicting thermal expansivity at high temperatures for geophysical minerals

✍ Scribed by S.K. Srivastava

Book ID
103883437
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
189 KB
Volume
355
Category
Article
ISSN
0921-4526

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✦ Synopsis

In the present communication, a new relationship for temperature dependence of thermal expansivity at high temperatures has been reported. The relation is acquired on the ground of high-temperature experimental data collected by Anderson for six geophysical minerals, viz. NaCl, KCl, MgO, CaO,Mg 2 SiO 4 and Grossular Garnet. According to the present study, the thermal expansivity varies exponentially with temperature above the Debye temperature. The model projected in the present study is valuable to predict data on thermal expansivity in the high-temperature domain where experimental data have not been found so far.

πŸ“œ SIMILAR VOLUMES

Comment on β€œModel for evaluating and pre
Comment on β€œModel for evaluating and predicting thermal expansivity at high temperatures for geophysical minerals”
✍ Zheng-Hua Fang πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 97 KB

Srivastava [Physica B 355 (2005) 32] used an inappropriate approximation in the derivation of the relation of temperature dependence of thermal expansivity of minerals at high temperatures. This made one of the parameters in the relation obtained from fitting with a vague physical meaning for the va