skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-pressure stability, pressure-volume equation of state, and crystal structure under pressure of the thermoelectric material IrSb{sub 3}

Abstract

There is considerable current interest in filled and unfilled skutterudites because of their potential applications as thermoelectric materials. The authors have compressed the unfilled skutterudite IrSb{sub 3} to pressures of 42 GPa and find that it is surprisingly stable in view of the presence of large cavities in the structure. This has implications for the both the implantation of atomic or molecular species within the cavities by means of pressure and the stability of IrSb{sub 3} under hot isostatic pressing conditions. From a fit to the pressure - volume equation of state, values were obtained for the bulk modulus and pressure derivative of the bulk modulus of 136 {+-} 5 GPa and 4.8 {+-} 0.5, respectively. Rietveld refinement of the crystal structure at high-pressure further demonstrates the stability of the cavities under compression.

Authors:
; ; ;
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (US)
OSTI Identifier:
20050863
Resource Type:
Journal Article
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 12; Journal Issue: 3; Other Information: PBD: Mar 2000; Journal ID: ISSN 0897-4756
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; THERMOELECTRIC MATERIALS; ANTIMONY COMPOUNDS; IRIDIUM COMPOUNDS; CRYSTAL STRUCTURE

Citation Formats

Snider, T.S., Badding, J.V., Schujman, S.B., and Slack, G.A. High-pressure stability, pressure-volume equation of state, and crystal structure under pressure of the thermoelectric material IrSb{sub 3}. United States: N. p., 2000. Web. doi:10.1021/cm990446i.
Snider, T.S., Badding, J.V., Schujman, S.B., & Slack, G.A. High-pressure stability, pressure-volume equation of state, and crystal structure under pressure of the thermoelectric material IrSb{sub 3}. United States. doi:10.1021/cm990446i.
Snider, T.S., Badding, J.V., Schujman, S.B., and Slack, G.A. Wed . "High-pressure stability, pressure-volume equation of state, and crystal structure under pressure of the thermoelectric material IrSb{sub 3}". United States. doi:10.1021/cm990446i.
@article{osti_20050863,
title = {High-pressure stability, pressure-volume equation of state, and crystal structure under pressure of the thermoelectric material IrSb{sub 3}},
author = {Snider, T.S. and Badding, J.V. and Schujman, S.B. and Slack, G.A.},
abstractNote = {There is considerable current interest in filled and unfilled skutterudites because of their potential applications as thermoelectric materials. The authors have compressed the unfilled skutterudite IrSb{sub 3} to pressures of 42 GPa and find that it is surprisingly stable in view of the presence of large cavities in the structure. This has implications for the both the implantation of atomic or molecular species within the cavities by means of pressure and the stability of IrSb{sub 3} under hot isostatic pressing conditions. From a fit to the pressure - volume equation of state, values were obtained for the bulk modulus and pressure derivative of the bulk modulus of 136 {+-} 5 GPa and 4.8 {+-} 0.5, respectively. Rietveld refinement of the crystal structure at high-pressure further demonstrates the stability of the cavities under compression.},
doi = {10.1021/cm990446i},
journal = {Chemistry of Materials},
issn = {0897-4756},
number = 3,
volume = 12,
place = {United States},
year = {2000},
month = {3}
}