Raman Spectroscopic Studies at High Temperatures and High Pressures: Application to Determination of P-T Diagram of ZrO2

  1. Murli H. Manghnani and
  2. Yasuhiko Syono
  1. Haruo Arashi

Published Online: 21 MAR 2013

DOI: 10.1029/GM039p0335

High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto

High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto

How to Cite

Arashi, H. (1987) Raman Spectroscopic Studies at High Temperatures and High Pressures: Application to Determination of P-T Diagram of ZrO2 , in High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto (eds M. H. Manghnani and Y. Syono), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM039p0335

Author Information

  1. Research Institute for Scientific Measurements, Tohoku University, 1-1, 2-Chome, Katahira, Sendai, Japan

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1987

ISBN Information

Print ISBN: 9780875900667

Online ISBN: 9781118664124

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Keywords:

  • Mineralogy and Crystal Chemistry;
  • Phase transformations;
  • High Pressure-High Temperature Research

Summary

A diamond-anvil cell (DAC) of the lever-arm type has been modified for the measurement of Raman spectra at high temperatures and high pressures. Using the modified DAC temperatures up to 700°C have been obtained at pressures up to 7 GPa. Raman spectra were measured at various temperatures and pressures up to 350°C and 7 GPa. However, Raman spectra could not be measured above 410°C due to the strong background. From the temperature dependence of the signal from the diamond anvils it was found that the origin of the strong background in Raman spectra is the fluorescence from the diamond anvils, which increases in intensity with increasing temperature. Raman spectra of ZrO2 measured below 350°C and 7 GPa were used to determine the P-T diagram in this compound.