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A high pressure x-ray diffraction study of titanium disulfide.
MedLine Citation:
PMID:  21813976     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A high pressure angle dispersive synchrotron x-ray diffraction study of titanium disulfide (TiS(2)) was carried out to pressures of 45.5 GPa in a diamond-anvil cell. We observed a phase transformation of TiS(2) beginning at about 20.7 GPa. The structure of the high pressure phase needs further identification. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K(0T), was determined to be 45.9 ± 0.7 GPa with its pressure derivative, K'(0T), being 9.5 ± 0.3 at pressures lower than 17.8 GPa. It was found that the compression behavior of TiS(2) is anisotropic along the different axes. The compression ratio of the c-axis is about nine times larger than the a-axis when pressures are lower than 1 GPa. It suddenly decreases to three times larger at pressures of about 3 GPa. This ratio shows a linear decrease with a slope of negative 0.048 at pressures below phase transformation.
Authors:
Resul Aksoy; Emre Selvi; Russell Knudson; Yanzhang Ma
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Publication Detail:
Type:  Journal Article     Date:  2008-12-10
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  21     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2009 Jan 
Date Detail:
Created Date:  2011-08-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  025403     Citation Subset:  -    
Affiliation:
Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA.
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