Results 261 to 270 of about 40,750 (298)
Some of the next articles are maybe not open access.
Non-isothermal crystallization kinetics of As30Te60Ga10 glass
Applied Physics A, 2017The crystallization study under non-isothermal conditions of As30Te60Ga10 glass was investigated. The studied composition was synthesized by melt-quenching technique and characterized by different techniques such as X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC).
Mansour Mohamed +4 more
openaire +1 more source
DSC non-isothermal crystallization curves in polyoxymethylene
Colloid & Polymer Science, 1995Non-isothermal crystallization curves by differential scanning calorimetry for two-dimensional spherulite growth in polyoxymethylene have been modeled using the Avrami equation, taking into account heat dissipation in the sample holder during the phase transition.
C. J. G. Plummer, H. -H. Kausch
openaire +1 more source
Non-isothermal crystallization of PET/PLA blends
Thermochimica Acta, 2009Binary blends of poly(ethylene terephthalate) with poly(lactic acid), PET/PLA, were studied by differential scanning calorimetry and X-ray scattering. The PET/PLA blends, prepared by solution casting, were found to be miscible in the melt over the entire composition range. Both quenched amorphous and semicrystalline blends exhibit a single, composition
Huipeng Chen, Marek Pyda, Peggy Cebe
openaire +1 more source
Non-isothermal crystallization in amorphous selenium films
Journal of Thermal Analysis, 1982The usual determination of kinetic parameters of crystallization of amorphous products is based on isothermal measurements. In general the crystallization of amorphous selenium thin films is studied by non-isothermal experiments (DTA). The adaptation to non-isothermal crystallization of the Avrami transformation rate equation allows us to determine ...
J. Grenet, J. P. Larmagnac, P. Michon
openaire +1 more source
Important Matters of Non-Isothermal Crystallization Method
Applied Mechanics and Materials, 2014Non-isothermal crystallization method was performed for pure PLLA and a blend of 50/50 wt% PEO/PLLA samples. The spherulite radial growth rate was calculated and compared to what was acquired using the isothermal crystallization method. It is found that both the fitting order and the decimal number of the fitting polynomial functions heavily affect the
Xiao Can Zhang +4 more
openaire +1 more source
Non-isothermal crystallization of lanthanum-borate glasses
Journal of Materials Science Letters, 1996A non-isothermal crystn. of 3 La borate glasses of the La3O3.nB2O3 (n = 2, 3, 4) compns. were studied by differential thermal anal. The compns. corresponding to n = 2 and 4 lie in the stable immiscibility area and outside the glass-forming range, while the glass corresponding to n = 3 is situated in the middle of that range.
A. Marotta +3 more
openaire +2 more sources
Non-isothermal crystallization of disilicate glasses
1979Study of the crystallization behaviour of some alkali or alcaline earth silicate glasses. The authors have used the Johnson-Mehl-Avrami equation to describe the glass-crystal transformation. They have established a relation between activation energy, E, and a parameter, m, linked to the reaction mechanism and the DTA curves.
BRANDA, FRANCESCO, A. Buri, A. Marotta
openaire +1 more source
On the analysis of non-isothermal thermoanalytic crystallization experiments
Journal of Non-Crystalline Solids, 1991Certain aspects of the standard description of thermoanalytical crystallization experiments are examined. In particular, the applicability of the assumption of an Arrhenian temperature dependence of the crystallization rate constant, K, is assessed for non-isothermal transformations where the condition of site saturation is satisfied.
openaire +1 more source
Non – Isothermal Crystallization Crystallization of Polymers
International Polymer Processing, 1988W. Schneider, A. Köppl, J. Berger
openaire +1 more source
Non-isothermal crystallization in polyoxymethylene
Journal of Materials Science Letters, 1994C. J. G. Plummer, H. -H. Kausch
openaire +1 more source