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Tai Nguyen So - Vietnam National University, Ha Noi - VNU >
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| Title: | A Raman study of cation-disorder transition temperature of natural MgAl2O4 spinel |
| Authors: | Minh N.V.
Yang I.-S. |
| Keywords: | Cation-disorder
MgAl2O4
Raman study |
| Issue Date: | 2004 |
| Publisher: | Vibrational Spectroscopy |
| Citation: | Volume 35, Issue 2-Jan, Page 93-96 |
| Abstract: | We have measured Raman spectra of samples of natural MgAl2O 4 spinel before and after annealing at different temperatures and quenching. The appearance of 727cm-1 mode in the samples annealed at 800°C or higher is believed to be due to the cation-disorder of spinel. The full-width-at-the-half-maximum (FWHM) values of the 410cm-1 mode as a function of the annealing temperature clearly shows an abrupt increase at the temperature between 700 and 750°C as the annealing temperature increases. Thus, we find the annealing temperature at which the cation-disorder occurred in the natural MgAl2O4 spinel to be between 700 and 750°C. © 2004 Elsevier B.V. All rights reserved. |
| URI: | http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/11771 |
| ISSN: | 9242031 |
| Appears in Collections: | Articles of Universities of Vietnam from Scopus
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