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Ab initio study on the anisotropy of mechanical behavior and deformation mechanism for boron carbide.
- Source :
- Chinese Physics B; Apr2017, Vol. 26 Issue 4, p1-1, 1p
- Publication Year :
- 2017
-
Abstract
- The mechanical properties and deformation mechanisms of boron carbide under a-axis and c-axis uniaxial compression are investigated by ab initio calculations based on the density functional theory. Strong anisotropy is observed. Under a-axis and c-axis compression, the maximum stresses are 89.0 GPa and 172.2 GPa respectively. Under a-axis compression, the destruction of icosahedra results in the unrecoverable deformation, while under c-axis compression, the main deformation mechanism is the formation of new bonds between the boron atoms in the three-atom chains and the equatorial boron atoms in the neighboring icosahedra. [ABSTRACT FROM AUTHOR]
- Subjects :
- ANISOTROPY
BORON carbides
NONMETALS
CERAMIC materials
BORENIUM ions
Subjects
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 26
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 122814704
- Full Text :
- https://doi.org/10.1088/1674-1056/26/4/047101