Thermal expansion Of γ Mg2SiO4

Isao Suzuki, Eiji Otani, Mineo Kumazawa

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)


Thermal expansion of γ-Mg2SiO4 was measured with X-ray powder diffraction method up to 750°C at atmospheric pressure. The data are analyzed in terms of Grγneisen's theory of thermal expansion and Grγneisen's parameter is obtained to be 1.27. Volume thermal expansion coefficient is 19 at 20°C and 27 at 500°C in unit of 10-6/K. These values are compared with those of γ-Fe2SiO4, MgAl2O4 and other spinel type compounds, and it is suggested that the anharmonic properties of γ-(Mg, Fe)2SiO4 may be very close to those of MgAl2O4.

Original languageEnglish
Pages (from-to)53-61
Number of pages9
Journaljournal of physics of the earth
Issue number1
Publication statusPublished - 1979 Jan 1

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)


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