Results 51 to 60 of about 1,366,747 (308)

Effect of processing conditions on crystallization kinetics during materials extrusion additive manufacturing

Polymer, 2018
Material extrusion additive manufacturing processes force molten polymer through a printer nozzle at high (> 100 s−1) wall shear rates prior to cooling and crystallization. These high shear rates can lead to flow-induced crystallization in common polymer
L. Northcutt, S. Orski, K. Migler, Anthony P. Kotula   +3 more
semanticscholar   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Distinct Crystallization Pathways of Polyoxymethylene in Methanol System

Crystals
Recrystallization of polyoxymethylene (POM) in solvent is an effective post-treatment method for manufacturing a better POM product. Herein, the crystallization process of POM in methanol was investigated with the use of a series of equipment.
Haowen Du, Xiaomeng Zhou, Yaru Zhang, Yang Ye, Shutian Xuanyuan, Sen Yang, Guorui Lao, Chuang Xie   +7 more
doaj   +1 more source

Cooling rate effects on the crystallization kinetics of polypropylene/date palm fiber composite materials

Science and Engineering of Composite Materials, 2016
Non-isothermal crystallization kinetics of polypropylene/date palm fiber (PP/DPF) composite materials were investigated in this study, using the differential scanning calorimetry (DSC) method.
Boukettaya Sonia, Seddique Waseem Al, Alawar Ahmad, Daly Hachmi Ben, Hammami Adel   +4 more
doaj   +1 more source

Kinetic Theory of Crystallization of Nanoparticles

Crystal Growth & Design, 2010
This paper describes a kinetic theory of the crystallization of nanoparticles, where nanoparticles are dissolving and crystals are forming in solution.
Tsukimura, Katsuhiro, Suzuki, Masaya, Suzuki, Yohey, Murakami, Takashi   +3 more
openaire   +1 more source

Quantification of isothermal crystallization of polyamide 12: Modelling of crystallization kinetics and phase composition

Polymer, 2018
The crystallization of Polyamide 12 (PA12) has been investigated using a new experimental setup which allows in-situ synchrotron Wide Angle X-ray Diffraction (WAXD) during Flash-DSC measurements.
F. Paolucci, Dorien Baeten, Pc Peter Roozemond, B. Goderis, G. Peters   +4 more
semanticscholar   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Fractionation of Camellia oleifera seed oil by molten layer crystallization and lipid characteristics of its products

Shipin yu jixie
ObjectiveTo address the limitations of the traditional fractionation process of Camellia oleifera seed oil, a novel molten layer crystallization process based on crystallization kinetics theory is developed.MethodsUsing crude C.
LIU Zhaofan, LIU Jiabao, LI Hang, HUANG Zonghai, HE Xinyi, LI Yun   +5 more
doaj   +1 more source

Crystallization and Precipitation

KONA Powder and Particle Journal, 2014
The paper deals with the design and operation of cooling and evaporation crystallizers and precipitators for reaction crystallization.
Alfons Mersmann
doaj   +1 more source

Preparation of polypropylene/Mg–Al layered double hydroxides nanocomposites through wet pan-milling: non-isothermal crystallization behaviour [PDF]

Royal Society Open Science, 2018
Differential scanning calorimeter was used to extensively investigate the non-isothermal crystallization of polypropylene (PP)/layered double hydroxides (LDHs) nanocomposites prepared through wet solid-state shear milling.
Yilei Zheng, Yinghong Chen
doaj   +1 more source