Theoretical analysis of dislocation splittings in MoSi2

0349233 - ÚFM 2011 RIV GB eng J - Článek v odborném periodiku
Paidar, Václav - Čák, Miroslav - Šob, Mojmír - Vitek, V.
Theoretical analysis of dislocation splittings in MoSi2.
Journal of Physics: Conference Series. Roč. 240, - (2010), 012007/1/-012007/6/. ISSN 1742-6588. E-ISSN 1742-6596
Grant CEP: GA AV ČR IAA100100920; GA MŠMT OC09011; GA MŠMT OC09014
Výzkumný záměr: CEZ:AV0Z20410507; CEZ:AV0Z10100520
Klíčová slova: dislocation splitting * MoSi2
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

Due to a lower symmetry of the tetragonal C11b structure when compared with the cubic BCC lattice, the 1/2[331] dislocation cores are split asymmetrically contrary to the 1/2[111]; BCC dislocations. This has essential impact on their behaviour and, consequently, on mechanical properties. Various types of dislocation dissociations are analyzed in the frame of anisotropic elasticity with the help of the data from ab initio calculations of gamma-surfaces for generalized stacking faults in intermetallic compound MoSi2.
Trvalý link: http://hdl.handle.net/11104/0189529