Abstract
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 language | English |
|---|---|
| Pages (from-to) | 53-61 |
| Number of pages | 9 |
| Journal | journal of physics of the earth |
| Volume | 27 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1979 Jan 1 |
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)