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Title: Energy Dissipation of Materials at High Pressure and High Temperature

Abstract

We report an experimental method to study the anelastic properties of materials at high pressure and high temperature. The multianvil high pressure deformation device, used to apply a cyclic loading force onto the sample, can reach 15 GPa and 2000 K. A synchrotron x-ray radiation source provides time resolved images of the sample and reference material. The images yield stress and strain as a function of time; stresses are derived from the reference material, and strains from the sample. This method has been tested by applying a sinusoidal stress at megahertz to hertz frequency on a San Carlos olivine specimen at 5 GPa and up to 2000 K. Strain as small as 10{sup -5} can be resolved. We have obtained experimental results which exhibit resolvable attenuation factor (Q{sup -1}) and shear modulus (M) at deep Earth conditions. These results are in quantitative agreement with previously reported lower pressure data and suggest that temperature and grain size have dominating effect on these properties.

Authors:
;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930510
Report Number(s):
BNL-80470-2008-JA
Journal ID: ISSN 0034-6748; RSINAK; TRN: US0901404
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 78; Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ATTENUATION; DEFORMATION; ENERGY LOSSES; GRAIN SIZE; OLIVINE; PRESSURE RANGE MEGA PA 10-100; RADIATION SOURCES; SHEAR; STRAINS; STRESSES; SYNCHROTRON RADIATION SOURCES; TEMPERATURE RANGE 0400-1000 K; X RADIATION; national synchrotron light source

Citation Formats

Li, L, and Weidner, D. Energy Dissipation of Materials at High Pressure and High Temperature. United States: N. p., 2007. Web. doi:10.1063/1.2735587.
Li, L, & Weidner, D. Energy Dissipation of Materials at High Pressure and High Temperature. United States. https://doi.org/10.1063/1.2735587
Li, L, and Weidner, D. 2007. "Energy Dissipation of Materials at High Pressure and High Temperature". United States. https://doi.org/10.1063/1.2735587.
@article{osti_930510,
title = {Energy Dissipation of Materials at High Pressure and High Temperature},
author = {Li, L and Weidner, D},
abstractNote = {We report an experimental method to study the anelastic properties of materials at high pressure and high temperature. The multianvil high pressure deformation device, used to apply a cyclic loading force onto the sample, can reach 15 GPa and 2000 K. A synchrotron x-ray radiation source provides time resolved images of the sample and reference material. The images yield stress and strain as a function of time; stresses are derived from the reference material, and strains from the sample. This method has been tested by applying a sinusoidal stress at megahertz to hertz frequency on a San Carlos olivine specimen at 5 GPa and up to 2000 K. Strain as small as 10{sup -5} can be resolved. We have obtained experimental results which exhibit resolvable attenuation factor (Q{sup -1}) and shear modulus (M) at deep Earth conditions. These results are in quantitative agreement with previously reported lower pressure data and suggest that temperature and grain size have dominating effect on these properties.},
doi = {10.1063/1.2735587},
url = {https://www.osti.gov/biblio/930510}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = ,
volume = 78,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}