Extension of the Angell fragility concept

Article Abstract:

A study on the concept of fragility in relation to the relaxation behavior of supercooled liquids introduces a classification scheme derived from that proposed by scientist C. Austen Angell but which distinguishes between the high-temperature Arrhenius behavior and low-temperature super-Arrhenius behavior. The high T-behavior was classified as weak or strong and the low-T behavior as fragile or non-fragile. The experiment found examples with all four combinations of these two categories.

Relaxation phenomena, Relaxation (Physics)

---

Nonlinear kinetic and thermodynamic properties of monomeric organic glasses

Article Abstract:

A study on the temperature dependence of relaxation and retardation times of supercooled liquids compares identical preparations of the three isomers of indane and of O-terphenyl and tri-alpha-naphthyl benzene. The experimental values of thermodynamic Kauzmann temperature, published dielectric relaxation and viscosity Fulcher temperatures and non-linear enthalpic Adam-Gibbs temperatures of these preparations were scrutinized. Results are discussed.

Analysis, Case studies, Temperature measurements, Temperature measurement, Thermodynamics, Matter, Kinetic theory of, Kinetic theory

---

Similar abstracts:

• Abstracts: Structure and reaction in the active site of mammalian adenylyl cyclase. An in-depth study of supported In2O3 catalysts for the selective catalytic reduction of No(sub x): The influence of the oxide support
• Abstracts: Adsorption and dissociation of methanol on aluminum (100): theoretical analysis of reaction mechanism. Photochemistry of methanol and methoxy groups adsorbed on powdered TiO2
• Abstracts: Spectroscopic investigations and molecular dynamics studies of cationic exchanged EMT zeolites. Characterization and catalytic activity of aluminium- and aluminium/tetramethylammonium-exchanged bentonites
• Abstracts: Characterization of the time scales of molecular motion in pharmaceutically important glasses. An increasing correlation length in off-equilibrium glasses

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.