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Showing 1 to 8 of 8 for “"Martensitic transition"”.
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Electronic Instabilities and the Martensitic Transition in a-15 Compounds
Made available in DSpace on 2015-05-13T15:22:04Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7708937.PDF: 3727699 bytes, checksum: 074852409f4e78544dde6425d296a466 (MD5) Previous issue date: 1976
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Electronic instabilities and the Martensitic transition in A-15 compouns
The structural transition and anomalous properties of the high temperature A-15 superconductors have been investigated from two different standpoints. The first is a Landau theory based on Gorkov's physical model of a Peierls-like charge density wave (CDW) transition involving electronic CDW order …
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Pulse-field actuation of collinear magnetic single crystals
… of several features, including a thermoelastic martensitic transition, and a ferromagnetic martensite (non-equilibrium, low-temperature) phase. The magnetocrystalline anisotropy must also be large, as seen in similar alloys such as iron-palladium (Fe₇₀Pd₃₀) [1]. Nickel-manganese-gallium is an …
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EXPLORATION OF NEW MAGNETOCALORIC AND MULTIFUNCTIONAL MAGNETIC MATERIALS
… results in a first-order magnetostructural transition (MST) from a hexagonal ferromagnetic to an orthorhombic antiferromagnetic phase at 186 K (for x = 0.09). A large magnetic entropy change of ∆SM = -17.6 J/kg K for ∆H = 5 T was observed in the vicinity of TM = 186 K for x = 0.09. This …
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Investigating the molecular origin of polymorphism and transition pathways in organic semiconductors with bulky side chains
… molecular-level understanding of the polymorphic transition mechanism and pathways is needed. Although some studies attempt to uncover the molecular origin of polymorphism in molecular crystals, they are system-specific and usually exclude organic semiconductor systems. Here, we investigate the …
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EXPLORATION OF NEW MULTIFUNCTIONAL MAGNETIC MATERIALS BASED ON A VARIETY OF HEUSLER ALLOYS AND RARE-EARTH COMPOUNDS
… electrical resistivity measurements. The phase transitions, magnetic, magnetocaloric, magnetotransport and magnetoelastic properties strongly depend on the composition of these systems. In Ni50Mn50-xInx with x = 13.5, magnetocaloric and magnetotransport properties associated with the …
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An analysis of ferromagnetic shape memory alloys produced by melt spinning, sputtering and pulsed laser deposition.
… order plays a large part in determining the martensitic transition temperature. This temperature is suppressed significantly in the disordered B2 structure where there is little correlation of the Mn and Ga atoms at the body center. Ni2MnGa undergoes a B2 to L21 (Heusler) transition at 1071K …
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Functional materials for thermal regulation
… semiconductor to metal phase transition as supported by Raman spectroscopy. Further, the ratio of the in-plane to through-plane thermal conductivity is enhanced by the disorder in bulk crystals. These results suggest that stacking disorder and mixture of phases is an effective …