نتایج جستجو برای: non isothermal crystallization
تعداد نتایج: 1349859 فیلتر نتایج به سال:
53 Abstract 54 A dynamic computational model developed within the context of the classical theory of phase evolution was applied 55 to the W–C system to simulate the kinetics of phase selection during non-equilibrium solidification at 50%-C between 56 the thermodynamically stable WC and the metastable WC1 x and W2C. The kinetic variables used in the model are 7 directly obtained from the free e...
Isothermal crystallization of the mono-hydroxyl alcohol n-butanol was studied with dielectric spectroscopy in real time. The crystallization was carried out using two different sample cells at 15 temperatures between 120 K and 134 K. Crystallization is characterized by a decrease of the dielectric intensity. In addition, a shift in relaxation times to shorter times was observed during the cryst...
The objective of this work was to study the polymorphic transformation of carbamazepine from Form II to Form III in 1-propanol during seeded isothermal batch crystallization. First, the pure Form II and Form III were obtained and characterized. Then their solubilities and metastable zone limits were measured by in-situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectrosc...
In this work, a series of polypropylene/polyvinyl butyral (PP/PVB) blends were prepared by melt-blending process, at PVB loadings 3 wt%, 10 wt%, and 30 wt%. The effects of PVB on crystallization behavior of PP were investigated by differential scanning calorimetry (DSC), and polarized optical microscopy (POM). The isothermal crystallization kinetics were analyzed by Avrami equations. It was fou...
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