Solid-solid phase transformation via internal stress-induced virtual melting, significantly below the melting temperature. Application to HMX energetic crystal

Article Abstract:

A study has predicted that solid-solid phase transformation (PT) with a large transformation strain occurs through internal stress-induced virtual melting along the interface at temperatures below the melting temperature. The results have demonstrated that the energy of elastic stresses, induced by transformation strain, increases the driving forces for melting and reduces the melting temperature.

Science & research, Research, Phase transformations (Statistical physics), Phase transitions (Physics), Magnetic properties, Platinum compounds, Transition temperature, Phase transition temperatures

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Dissociation enthalpies of synthesized multicomponent gas hydrates with respect to the guest composition and cage occupancy

Article Abstract:

The enthalpies of synthesized multicomponent gas hydrates and the influence of guest molecules such as [C.sub.2][H.sub.6], [C.sub.3][H.sub.8], and C[O.sub.2] on their thermal behavior were determined. It was seen that when the difference in guest-to-cavity size ratio between the replaced methane and the replacing guest molecule is significant.

Analysis, Gas hydrates, Dissociation, Dissociation reactions, Chemical properties, Chemical thermodynamics

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