High pressure X-ray diffraction study on icosahedral boron arsenide (B12As2) |
| |
| Authors: | Jianzhe Wu Dongbin Hou CE Whiteley Yanzhang Ma |
| |
| Institution: | a Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA
b Department of Chemical Engineering, Kansas State University, Manhattan, KS 66506, USA |
| |
| Abstract: | The high pressure properties of icosahedral boron arsenide (B12As2) were studied by in situ X-ray diffraction measurements at pressures up to 25.5 GPa at room temperature. B12As2 retains its rhombohedral structure; no phase transition was observed in the pressure range. The bulk modulus was determined to be 216 GPa with the pressure derivative 2.2. Anisotropy was observed in the compressibility of B12As2—c-axis was 16.2% more compressible than a-axis. The boron icosahedron plays a dominant role in the compressibility of boron-rich compounds. |
| |
| Keywords: | C High pressure C X-ray diffraction D Equation-of-state |
| 本文献已被 ScienceDirect 等数据库收录！ |
