The structural relaxation process of an inorganic glass (Li2O · 2SiO2) at an ageing temperature of 703 K for an ageing time of 1 h has been studied by differential scanning calorimetry. A four-parameter model - the Tool-Narayanaswamy-Moynihan (TNM) - model was applied to simulate the normalized specific heat curve measured. A set of optimized parameters, ? h*/R, ?, In A, and x was obtained. Then the effects of variation of each adjustable parameter on the calculated specific heat were summarized.
The effect of structural parameters on the enthalpy relaxation of an inorganic glass (Li2O · 2SiO2)
Nicolais L
1997
Abstract
The structural relaxation process of an inorganic glass (Li2O · 2SiO2) at an ageing temperature of 703 K for an ageing time of 1 h has been studied by differential scanning calorimetry. A four-parameter model - the Tool-Narayanaswamy-Moynihan (TNM) - model was applied to simulate the normalized specific heat curve measured. A set of optimized parameters, ? h*/R, ?, In A, and x was obtained. Then the effects of variation of each adjustable parameter on the calculated specific heat were summarized.File in questo prodotto:
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