Raman study at high pressure and the thermodynamic properties of corundum; application of Kieffer's model

Abstract

Other| December 01, 1995 Raman study at high pressure and the thermodynamic properties of corundum: Application of Kieffer's model Ji-an Xu; Ji-an Xu Academia Sinica, Institute of Earth Sciences, Taipei, Taiwan Search for other works by this author on: GSW Google Scholar Eugene Huang; Eugene Huang Search for other works by this author on: GSW Google Scholar Jung-fu Lin; Jung-fu Lin Search for other works by this author on: GSW Google Scholar Lilian Yunyi Xu Lilian Yunyi Xu Search for other works by this author on: GSW Google Scholar American Mineralogist (1995) 80 (11-12): 1157–1165. https://doi.org/10.2138/am-1995-11-1206 Article history first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Ji-an Xu, Eugene Huang, Jung-fu Lin, Lilian Yunyi Xu; Raman study at high pressure and the thermodynamic properties of corundum: Application of Kieffer's model. American Mineralogist 1995;; 80 (11-12): 1157–1165. doi: https://doi.org/10.2138/am-1995-11-1206 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyAmerican Mineralogist Search Advanced Search Abstract A Raman spectroscopic study was performed in a diamond-anvil cell to measure the optical vibrational modes of corundum as a function of pressure up to 20 GPa. The integrals concerning the optic continuum in Kieffer's model can be calculated as the weighted sum of each mode in the continuum. Thus, on the basis of Kieffer's model and the experimental results of this study, thermodynamic parameters such as heat capacity, entropy, thermal expansion coefficient, and Gruneisen parameter for corundum at various pressures and temperatures were determined. The contribution to the heat capacity of corundum approaches the classic (Dulong-Petit) limit in the interior of the Earth beneath a depth of 50 km. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.