Structural glass transitions and thermophysical processes in amorphous carbohydrates and their supersaturated solutions

I propose now to state the general conclusions at which I have arrived since resuming the study of this subject two years ago. The remarks that will be made refer to solutions of the typical salt, sodic sulphate, in the proportions of 6 of salt to 3 of water. In my first two papers on supersaturated saline solutions, a nucleus is defined as a body that has a stronger adhesion for the salt, or for the liquid of a solution, than subsists between the salt and the liquid.

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Intrinsic chiral-spin glass and spin glass transitions in compacted Ni5Al3/NiO core/shell nanoparticles

Physical Review Materials ◽

10.1103/physrevmaterials.3.126003 ◽

2019 ◽

Vol 3 (12) ◽

Author(s):

P. V. Prakash Madduri ◽

S. N. Kaul

Keyword(s):

Spin Glass ◽

Core Shell ◽

Glass Transitions ◽

Shell Nanoparticles ◽

Core Shell Nanoparticles

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Anomalous diffusion near structural-glass transformations

Physics Letters A ◽

10.1016/s0375-9601(00)00807-0 ◽

2001 ◽

Vol 280 (1-2) ◽

pp. 97-103 ◽

Cited By ~ 8

Author(s):

V.B. Kokshenev ◽

N.S. Sullivan

Keyword(s):

Anomalous Diffusion ◽

Structural Glass

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A Positron Annihilation Lifetime Study of Poly(Bisphenol-a Carbonate)

MRS Proceedings ◽

10.1557/proc-82-29 ◽

1986 ◽

Vol 82 ◽

Author(s):

P. L. Jones ◽

A. J. Hill ◽

G. W. Pearsall ◽

J. H. Lind

Keyword(s):

Bisphenol A ◽

Positron Annihilation ◽

Thermal History ◽

Thermal Response ◽

Semicrystalline Polymers ◽

Glass Transitions ◽

Thermal Dependence ◽

Positron Annihilation Lifetime ◽

Ductile To Brittle Transition ◽

Increasing Temperature

ABSTRACTPositron annihilation lifetime spectroscopy has proven to be sensitive to glass transitions and other free volume dependent phase transitions in amorphous and semicrystalline polymers. The thermal dependence of the lifetime spectra of positrons in compression-molded poly(bisphenol-A carbonate) has been measured from 253K to 323K, then modelled using a three component fit. The longest-lived component lifetime τ3 was found to vary linearly with increasing temperature independent of thermal history. The corresponding component intensity I3 was found to vary in a non-linear fashion with increasing temperature, exhibiting a significant dependence on thermal history. The observed thermal response of τ3 and I3 is discussed in terms of both molecular relaxation and the ductile-to-brittle transition behavior of poly(bisphenol-A carbonate).

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