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High temperature elasticity measurements on oxides by Brillouin spectroscopy with resistive and IR laser heating

Sinogeikin, Stanislav V. and Lakshtanov, Dmitry L. and Nicholas, Jason D. and Jackson, Jennifer M. and Bass, Jay D. (2005) High temperature elasticity measurements on oxides by Brillouin spectroscopy with resistive and IR laser heating. Journal of the European Ceramic Society, 25 (8). pp. 1313-1324. ISSN 0955-2219. https://resolver.caltech.edu/CaltechAUTHORS:20130212-152508521

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Abstract

Knowledge of single crystal and aggregate elastic moduli of materials at high temperature is important in the development of high-temperature structural ceramics as well as for other areas of material sciences. Sound velocities, and hence elastic moduli, can be readily measured on micro-crystals, polycrystalline aggregates and amorphous materials using Brillouin scattering. We have developed techniques for determining the elastic moduli at high temperatures, using both electric resistive heating (to 1800 K) and CO_2 laser heating (to T > 2500 K). The full set of elastic constants of transparent oxides at high temperatures can be measured on samples with dimensions of 100 × 100 × 20 μm or even smaller. Compact resistance heaters of our design were used to study the temperature dependence of the elastic moduli of a variety of crystalline oxides and glasses, and can be used to observe high-temperature phase transitions involving elastic softening. The combination of Brillouin scattering with CO_2 laser heating allows measurements of the elastic moduli of oxides at even higher temperatures, approaching the melting points of refractory materials. The acoustic velocities of single-crystal MgO were measured to a maximum temperature exceeding 2500 ± 100 K. Both Brillouin and Raman measurements were performed on CO_2 laser-heated samples of single-crystal α-Al_2O_3 to temperatures exceeding 2000 ± 100 K. Our results show that Brillouin scattering coupled with CO_2 laser heating is a viable means of performing sound velocity measurements at temperatures significantly higher than those readily made using resistance heating.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.jeurceramsoc.2005.01.001DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/S0955221905000233PublisherUNSPECIFIED
ORCID:
AuthorORCID
Jackson, Jennifer M.0000-0002-8256-6336
Additional Information:© 2005 Published by Elsevier Ltd. Available online 5 February 2005. We thank Brit O’Neill for help in software development for resistive heating temperature measurements. This research was supported by National Science Foundation (grants EAR EAR0002021 and 0003383) and the Air Force Office of Scientific Research (grant CWR0500).
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
NSFEAR-0002021
NSFEAR-0003383
Air Force Office of Scientific Research (AFOSR)CWR0500
Subject Keywords:Spectroscopy; Mechanical properties; High-temperature elasticity measurements by Brillouin scattering
Issue or Number:8
Record Number:CaltechAUTHORS:20130212-152508521
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130212-152508521
Official Citation:Stanislav V. Sinogeikin, Dmitry L. Lakshtanov, Jason D. Nicholas, Jennifer M. Jackson, Jay D. Bass, High temperature elasticity measurements on oxides by Brillouin spectroscopy with resistive and IR laser heating, Journal of the European Ceramic Society, Volume 25, Issue 8, 2005, Pages 1313-1324, ISSN 0955-2219, 10.1016/j.jeurceramsoc.2005.01.001.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36889
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Feb 2013 19:27
Last Modified:24 Jan 2020 18:45

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