Results 261 to 270 of about 304,137 (289)

Isothermal and non-isothermal crystallization in amorphous sucrose and lactose at low moisture contents

Carbohydrate Research, 2000
Differential scanning calorimetry has been used in isothermal and non-isothermal modes to provide information on the crystallization of sucrose and lactose at low water contents. Using approaches previously applied to polymer crystallization an attempt has been made to combine the isothermal and non-isothermal data into a single curve. This is achieved
C J, Kedward, W, MacNaughtan, J R, Mitchell   +2 more
openaire   +2 more sources

The Non-Isothermal and Isothermal Crystallization Behavior and Mechanism of Fe–Ni Alloys

Crystal Growth & Design, 2020
(Fe40Ni40B19Cu1)97Nb3 magnetic amorphous alloys have been prepared by a melt-spun method, and their crystallization behavior and kinetics have been investigated.
Zhe Chen, Qianke Zhu, Kewei Zhang, Yong Jiang   +3 more
openaire   +1 more source

Memory effects in isothermal crystallization. I. Theory

Colloid & Polymer Science, 1994
A theoretical analysis of transient isothermal crystallization, including relaxational and athermal effects is given. The analysis is based on Kolmogoroff-Avrami-Evans transformation equation and nucleation theory of Turnbull and Fisher. The memory of previous structures manifests itself in the distribution of atomic (molecular) clusters which ...
ZIABICKI A., ALFONSO, GIOVANNI CARLO
openaire   +2 more sources

Numerical model for isothermal and non-isothermal crystallization of liquids and glasses

Journal of Non-Crystalline Solids, 1993
A new numerical model of isothermal and non-isothermal first order phase transformations, such as the crystallization of liquids and glasses, is presented. This model computes directly the volume fraction transformed, taking into account time-dependent nucleation rates and cluster-size-dependent growth velocities.
openaire   +1 more source

Flow-Induced Crystallization of PEEK: Isothermal Crystallization Kinetics and Lifetime of Flow-Induced Precursors during Isothermal Annealing

ACS Macro Letters, 2016
The role of an interval of shear flow in promoting the flow-induced crystallization (FIC) for poly(ether ether ketone) PEEK was investigated by melt rheology and calorimetry. At 350 °C, just above the melting temperature of PEEK (Tm), a critical shear rate to initiate the formation of flow-induced precursors was found to coincide with the shear rate at
Behzad, Nazari, Alicyn M, Rhoades, Richard P, Schaake, Ralph H, Colby   +3 more
openaire   +2 more sources

Morphology, isothermal and non-isothermal crystallization kinetics of poly(methylene terephthalate)

European Polymer Journal, 2006
Abstract The morphology of crystals, isothermal and non-isothermal crystallization of poly(methylene terephthalate) (PMT) have been investigated by using polarized optical microscopy and differential scanning calorimeter (DSC). The POM photographs displayed only several Maltese cross at the beginning short time of crystallization indicating that some
Mingtao Run, Chenguang Yao, Yingjin Wang
openaire   +1 more source

Melting behaviors, isothermal and non-isothermal crystallization kinetics of nylon 1212

Polymer, 2003
Abstract Isothermal crystallization, subsequent melting behavior and non-isothermal crystallization of nylon 1212 samples have been investigated in the temperature range of 160–171 °C using a differential scanning calorimeter (DSC). Subsequent DSC scans of isothermally crystallized samples exhibited three melting endotherms.
Minying Liu, Qingxiang Zhao, Yudong Wang, Chenggui Zhang, Zhishen Mo, Shaokui Cao   +5 more
openaire   +1 more source

Non-isothermal crystallization and isothermal transformation kinetics of the Ni68.5Cr14.5P17 metallic glass

Journal of Materials Science, 1989
Non-isothermal crystallization of the Ni68.5Cr14.5P17 alloy is characterized by differential scanning calorimetry (DSC) and X-ray techniques. Transformation occurs in two stages at peak temperatures 622±1 and 692±1 K (at 20 K min−1), with ΔH1=1.50+0.1 kJ mol−1 and ΔH2=3.0±0.1 kJ mol−1.
C. F. Conde, H. Miranda, A. Conde, R. Marquez   +3 more
openaire   +1 more source

Non – Isothermal Crystallization Crystallization of Polymers

International Polymer Processing, 1988
W. Schneider, A. Köppl, J. Berger
openaire   +1 more source

Non-isothermal crystallization in polyoxymethylene

Journal of Materials Science Letters, 1994
C. J. G. Plummer, H. -H. Kausch
openaire   +1 more source