NettetThree zones can be distinguished: (i) a low temperature region in the range from <150° to ∼180°C, magnified in the inset and related to the glass transition; (ii) an intermediate … Nettet5. jan. 2009 · Rather, he defined fictive temperature as “simply the structural contribution to the value of the macroscopic property of interest expressed in temperature units.” 11 This interpretation of fictive temperature is simpler in that it bypasses the microscopic physics of the glass; however, the assumption of only one fictive temperature for each …

Glass transition temperature of poly(d,l-lactic acid) of different ...

Nettet31. mar. 2015 · where β C is the cooling rate and T′ f corresponds to the limiting fictive temperature. The variation of ln β C as a function of 1/T′ f is thus supposed to be linear, and the slope of the corresponding curve is proportional to the fragility index [20, 21]. In this work, we propose in a first time to compare the limiting fictive temperature, T′ f, … Nettet1. nov. 2001 · The limiting fictive temperatures (T f ′) of 16 multi-component silicate glasses have been derived quantitatively from heat capacity measurements, following the method of Moynihan et al. (1976).These quantitative values of T f ′ closely match temperatures corresponding to the onset (T onset) of the rapid rise in dilatometry … unl financial analytics

The role of thermodynamic stability in the characteristics of the ...

http://kinampark.com/PL/files/Gao%202415%2C%20Measurement%20of%20the%20limiting%20fictive%20temperature.pdf Nettetsuper-Arrhenius behaviour in the high-temperature regime above the conventional devitrification temperature heating at 10 K/min. The liquid and glass states can be … Nettet21. okt. 2016 · where all the parameters have an analogous meaning as in Equation (1).In this case, however, D has been substituted by a linear function of the limiting fictive temperature of the glass, . recette hivers