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Title: High Pressure X-ray Diffraction Study of Potassium Azide

Journal Article · · Journal of Physics and Chemistry of Solids

Crystal structure and compressibility of potassium azide was investigated by in-situ synchrotron powder X-ray diffraction in a diamond anvil cell at room temperature up to 37.7 GPa. In the body-centered tetragonal (bct) phase, an anisotropic compressibility was observed with greater compressibility in the direction perpendicular to the plane containing N{sub 3}{sup -} ions than directions within that plane. The bulk modulus of the bct phase was determined to be 18.6(7) GPa. A pressure-induced phase transition may occur at 15.5 GPa.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE SC OFFICE OF SCIENCE (SC)
DOE Contract Number:
DE-AC02-98CH10886
OSTI ID:
1042019
Report Number(s):
BNL-97697-2012-JA; JPCSAW; TRN: US201212%%430
Journal Information:
Journal of Physics and Chemistry of Solids, Vol. 72, Issue 6; ISSN 0022-3697
Country of Publication:
United States
Language:
English

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