Physics and Chemistry of Minerals

, Volume 9, Issue 1, pp 38–47

Temperature coefficients of elastic constants of single crystal MgO between 80 and 1,300 K

  • Yoshio Sumino
  • Orson L. Anderson
  • Isao Suzuki
Article

DOI: 10.1007/BF00309468

Cite this article as:
Sumino, Y., Anderson, O.L. & Suzuki, I. Phys Chem Minerals (1983) 9: 38. doi:10.1007/BF00309468

Abstract

Elastic constants of single crystal MgO have been measured by the rectangular parallelepiped resonance (RPR) method at temperatures between 80 and 1,300 K. Elastic constants Cij (Mbar=103 kbar) and their temperature coefficients (kbar/K) are:
$$\begin{gathered} {\text{ }}C_{{\text{11}}} {\text{ }}C_{{\text{12}}} {\text{ }}C_{{\text{44}}} {\text{ }}K_s {\text{ }}C_s \hfill \\ C_{ij} {\text{ 300 K 2}}{\text{.966 0}}{\text{.959 1}}{\text{.562 1}}{\text{.628 1}}{\text{.004}} \hfill \\ \partial C_{ij} {\text{/}}\partial T{\text{100 K }} - {\text{0}}{\text{.259 0}}{\text{.013 }} - {\text{0}}{\text{.072 }} - {\text{0}}{\text{.078 }} - {\text{0}}{\text{.136}} \hfill \\ {\text{ 300K }} - {\text{0}}{\text{.596 0}}{\text{.068 }} - {\text{0}}{\text{.122 }} - {\text{0}}{\text{.153 }} - {\text{0}}{\text{.332}} \hfill \\ {\text{ 800 K }} - {\text{0}}{\text{.619 0}}{\text{.009 }} - {\text{0}}{\text{.152 }} - {\text{0}}{\text{.200 }} - {\text{0}}{\text{.314}} \hfill \\ {\text{ 1,300 K }} - {\text{0}}{\text{.598 0}}{\text{.036 }} - {\text{0}}{\text{.130 }} - {\text{0}}{\text{.223 }} - {\text{0}}{\text{.218}} \hfill \\ \end{gathered} $$

By combining the present results with the previous data on the thermal expansivity and specific heat, the thermodynamic properties of magnesium oxide are presented and discussed. The elastic parameters of MgO at very high temperatures in the earth's lower mantle are also clarified.

Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • Yoshio Sumino
    • 1
  • Orson L. Anderson
    • 1
  • Isao Suzuki
    • 1
  1. 1.Institute of Geophysics and Planetary PhysicsUniversity of CaliforniaLos AngelesUSA
  2. 2.Department of Earth SciencesNagoya UniversityNagoyaJapan