Plastic deformation of single crystals of Mo(Si, Al)₂with the C40 structure

Plastic deformation of single crystals of Ti5Si3 with the hexagonal D88 structure

“…Loading axis orientation [23][24][25] and in covalent semiconductors [26]. This is attributed to the fact that the stress required to generate dislocations is much larger than that required for their motion because of a quite low density for grown-in dislocations.…”

Effects of substitution of Al for Si on the lattice variations and thermal expansion of Mo(Si,Al)2

“…However, the lattice parameters of these structures, C11 b , C40 and C54, have never been studied in detail through the wide composition range of Mo(Si,Al) 2 , despite the significance of this property as one of fundamental physical parameters of the material. Also, with respect to C40-and C54-type Mo(Si,Al) 2 , no thermal expansion data have been reported to date, though their mechanical properties, deformation mechanisms [13][14][15][16] and oxidation behavior [1-3, 17,18] have been extensively described.…”

Dynamic equilibrium of MoSi2 polymorphs during mechanical milling

“…They did not report, however, how the close-packed layers move during deformation. Inui et al observed the synchroshear mechanism in the plastic deformation of CrSi 2 and Mo(Si, Al) 2 both with the C40 structure, and also proposed that the synchroshear mechanism plays a role in the transformations between C11 b and C40 phases [13,14]. That is, if a C layer above a B layer and all successively upper layers are displaced by ± 1 6 [1 12 0] and at the same time, an A layer above the C layer and all successively upper layers are displaced by ± 1 6 [1 21 0], the stacking sequence of the BCA unit is transformed into the AB-type sequence.…”