|
|||||
|
|
High pressure X-ray diffraction study of potassium azide |
|
| Authors: | Cheng Ji Dongbin Hou Jianzhe Wu Valery I. Levitas |
| Affiliation: | a Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409-1021, USA b Department of Geological Sciences, University of Michigan, Ann Arbor, MI 48109-1005, USA c Department of Mechanical Engineering, Aerospace Engineering, and Material Science and Engineering, Iowa State University, Ames, Iowa 50011, USA |
| 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: | A. Diamond anvil cell B. Synchrotron X-ray diffraction C. Anisotropic compressibility D. Phase transition |
| 本文献已被 ScienceDirect 等数据库收录！ | |