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Dynamics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
(Iop Publishing, 2011-10-12)
We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic ...
Multicritical phase diagram of the three-dimensional Ashkin-Teller model including metastable and unstable phases
(Elsevier B.V., 2019-01-01)
The mean field approximation from the Bogoliubov inequality is applied to study the ferromagnetic Ashkin-Teller model in three dimensions. Phase transitions for the stable, metastable and unstable states is observed. From ...
Multiple interfaces in diffusional phase transitions in binary mesogen-nonmesogen mixtures undergoing metastable phase separations
(American Physical Society, 2012-07)
Theory and simulations of simultaneous chemical demixing and phase ordering are performed for a mixed order parameter system with an isotropic-isotropic (I-I) phase separation that is metastable with respect to an ...
Evidence of existence of metastable SrFe12O19 nanoparticles
(Elsevier Science, 2011-12)
The existence of metastable hexaferrite is reported. Synthesis of strontium hexaferrite, SrFe12O19, at 400 °C was realized under controlled oxygen atmosphere. Such technique allows obtaining of SrFe12O19 at lower temperatures ...
Metastable eutectoid transformation in spheroidal graphite cast iron: Modeling and validation
(Multidisciplinary Digital Publishing Institute, 2018-07)
This paper presents a new microstructural model of the metastable eutectoid transformation in spheroidal graphite cast irons. The model takes into account the nucleation and growth of pearlite nodules. The nucleation is ...
Formation and kinetics of transient metastable states in mixtures under coupled phase ordering and chemical demixing
(Europhysics Letters, 2009-12)
We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid-crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic ...
Metastability and hysteretic vortex pinning near the order-disorder transition in NbSe2: Interplay between plastic and elastic energy barriers
(American Physical Society, 2017-03)
We studied thermal and dynamic history effects in the vortex lattice (VL) near the order-disorder transition in clean NbSe2 single crystals. Comparing the evolution of the effective vortex pinning and the bulk VL structure, ...
Thermal behavior of Cu-Al alloys near the alpha-Cu-Al solubility limit
(Kluwer Academic Publ, 2001-01-01)
The thermal behavior of Cu-Al alloys with 17, 19 and 21 at.%Al was examined by differential thermal analysis (DTA), differential scanning calorimetry (DSC), X-ray diffractometry (XRD), optical microscopy (OM) and scanning ...