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Thermal expansion of fayalite,Fe2SiO4 |
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| Authors: | Isao Suzuki Kiyoshi Seya Humihiko Takei Yoshio Sumino |
| Institution: | 1. Department of Earth Sciences, Faculty of Science, Okayama University, 700, Okayama, Japan 3. Research Institute of Iron, Steel and Other Metals, Tohoku University, 980, Sendai, Japan 4. Department of Earth Sciences, Faculty of Science, Nagoya University, 464, Nagoya, Japan |
| Abstract: | Thermal expansion of single-crystal fayalite has been measured by a dilatometric method at temperatures between 25 °C and 850 °C. The results show the presence of anomalous expansion in the b axis, which is correlated to the anomalous variation of elastic moduli with temperature. Grüneisen's parameter is 1.10 and the thermal Debye temperature is 565 K, which is close to the acoustic Debye temperature of 511 K. |
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