High pressure X-ray diffraction study of potassium azide

Cheng Ji; Fuxiang Zhang; Dongbin Hou; Hongyang Zhu; Jianzhe Wu; Ming Chien Chyu; Valery I. Levitas; Yanzhang Ma

doi:10.1016/j.jpcs.2011.03.005

High pressure X-ray diffraction study of potassium azide

Cheng Ji, Fuxiang Zhang, Dongbin Hou, Hongyang Zhu, Jianzhe Wu, Ming Chien Chyu, Valery I. Levitas, Yanzhang Ma

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

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 N₃^- 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.

Original language	English
Pages (from-to)	736-739
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	72
Issue number	6
DOIs	https://doi.org/10.1016/j.jpcs.2011.03.005
State	Published - Jun 2011

Keywords

Anisotropic compressibility
Diamond anvil cell
Phase transition
Synchrotron X-ray diffraction

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title = "High pressure X-ray diffraction study of potassium azide",

abstract = "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 N3- 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.",

keywords = "Anisotropic compressibility, Diamond anvil cell, Phase transition, Synchrotron X-ray diffraction",

author = "Cheng Ji and Fuxiang Zhang and Dongbin Hou and Hongyang Zhu and Jianzhe Wu and Chyu, {Ming Chien} and Levitas, {Valery I.} and Yanzhang Ma",

note = "Funding Information: The authors thank Dr. Zhongwu Wang at CHESS and Dr. Zhiqiang Chen at NSLS for their technical helps. This work is supported by the Defense Threat Reduction Agency ( HDTRA1–09–0034 ), the Army Research Office ( W911NF-09–1–0001 ), and the National Science Foundation ( DMR-0619215 ).",

year = "2011",

month = jun,

doi = "10.1016/j.jpcs.2011.03.005",

language = "English",

volume = "72",

pages = "736--739",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

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T1 - High pressure X-ray diffraction study of potassium azide

AU - Ji, Cheng

AU - Zhang, Fuxiang

AU - Hou, Dongbin

AU - Zhu, Hongyang

AU - Wu, Jianzhe

AU - Chyu, Ming Chien

AU - Levitas, Valery I.

AU - Ma, Yanzhang

N1 - Funding Information: The authors thank Dr. Zhongwu Wang at CHESS and Dr. Zhiqiang Chen at NSLS for their technical helps. This work is supported by the Defense Threat Reduction Agency ( HDTRA1–09–0034 ), the Army Research Office ( W911NF-09–1–0001 ), and the National Science Foundation ( DMR-0619215 ).

PY - 2011/6

Y1 - 2011/6

N2 - 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 N3- 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.

AB - 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 N3- 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.

KW - Anisotropic compressibility

KW - Diamond anvil cell

KW - Phase transition

KW - Synchrotron X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=79956077735&partnerID=8YFLogxK

U2 - 10.1016/j.jpcs.2011.03.005

DO - 10.1016/j.jpcs.2011.03.005

M3 - Article

AN - SCOPUS:79956077735

VL - 72

SP - 736

EP - 739

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

IS - 6

ER -

High pressure X-ray diffraction study of potassium azide

Abstract

Keywords

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