A5027950669- Rheology and Fluid Dynamics Studies
- Polymer crystallization and properties
- Injection Molding Process and Properties
- Polymer Nanocomposites and Properties
- Polymer Foaming and Composites
- Energetic Materials and Combustion
- Granular flow and fluidized beds
- Bone Tissue Engineering Materials
- Electrospun Nanofibers in Biomedical Applications
- Carbon Nanotubes in Composites
- Epoxy Resin Curing Processes
- Rocket and propulsion systems research
- biodegradable polymer synthesis and properties
- Composite Material Mechanics
- Dielectric materials and actuators
- Fluid Dynamics and Thin Films
- Polysaccharides Composition and Applications
- Thermal and Kinetic Analysis
- Advanced Sensor and Energy Harvesting Materials
- Orthopaedic implants and arthroplasty
- Innovations in Concrete and Construction Materials
- Metallurgy and Material Forming
- Additive Manufacturing and 3D Printing Technologies
- Polymer composites and self-healing
- Organic Electronics and Photovoltaics
Stevens Institute of Technology
2016-2025
Texas A&M University
2017
John Wiley & Sons (United States)
2014
Kafkas University
2006
McGill University
1980-1983
The apparent slip flows of incompressible and viscoplastic (Herschel–Bulkley) fluids in plane Couette, capillary, rectangular slit dies under fully developed, isothermal, creeping flow conditions were analyzed assuming that the layer consists solely binder its thickness is independent rate. Both drag-induced (plane Couette) pressure-induced (capillary slit) generate same dependencies wall-slip velocity on wall shear stress. Navier’s coefficient, which relates to stress, similar for all three...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Ulku Yilmazer, Dilhan M. Kalyon; Slip Effects in Capillary Parallel Disk Torsional Flows of Highly Filled Suspensions. J. Rheol. 1 November 1989; 33 (8): 1197–1212. https://doi.org/10.1122/1.550049 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Dilhan M. Kalyon, Piraye Yaras, Birnur Aral, Ulku Yilmazer; Rheological behavior of a concentrated suspension: A solid rocket fuel simulant. Journal Rheology 1 January 1993; 37 (1): 35–53. https://doi.org/10.1122/1.550435 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Seda Aktas, Dilhan M. Kalyon, Benjamín Marín-Santibáñez, José Pérez-González; Shear viscosity wall slip behavior of a viscoplastic hydrogel. J. Rheol. 1 March 2014; 58 (2): 513–535. https://doi.org/10.1122/1.4866295 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote...
Abstract Tuning cell shape by altering the biophysical properties of biomaterial substrates on which cells operate would provide a potential shape-driven pathway to control phenotype. However, there is an unexplored dimensional scale window three-dimensional (3D) with precisely tunable porous microarchitectures and geometrical feature sizes at cell’s operating length scales (10–100 μm). This paper demonstrates fabrication such high-fidelity fibrous using melt electrowriting (MEW) technique....
A flow visualization technique was applied to investigate the time and temperature-dependent development of wall slip rheological behavior a concentrated suspension, containing 63% by volume solid glass spheres poly (butadiene-acrylonitrile-acrylic acid) terpolymer matrix, using steady torsional flow. Flow allowed concomitant determination velocity shear viscosity suspension. The deformation rate, stress, values during were dependent asymptotically reached steady-state values. characteristic...
Microporous polyvinylidene fluoride (PVDF) and PVDF nanocomposite membranes were prepared via an isothermal immersion precipitation method using two different antisolvents (ethanol water). The structure morphology of the resulting investigated by wide angle X‐ray diffraction (WAXD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential calorimetry (DSC). effects type antisolvent presence multiwalled carbon nanotubes (MWNTs) on membrane crystal...
The ability to fabricate tissue engineering scaffolds containing systematic gradients in the distributions of stimulators provides additional means for mimicking important observed native tissues. Here concentration two bioactive agents were varied concomitantly first time (one increasing, whereas other decreasing monotonically) between sides a nanofibrous scaffold. This was achieved via application new processing method, that is, twin-screw extrusion and electrospinning generate insulin,...
Abstract A biocompatible and biodegradable scaffold with load‐bearing ability is required to enhance the repair of bone defects by facilitating attachment, proliferation cells, vascularization during new formation. However, it challenging maintain porosity biodegradability, as well mechanical properties (especially compressive strength), at same time. Therefore, in present work, a composite structure poly(caprolactone) (PCL) was designed using compression molding varying amounts...
We have characterized various steady and time-dependent material functions of suspensions a non-Newtonian binder, poly(dimethyl siloxane), incorporated with 10%–60% by volume hollow spherical glass beads. The included storage the loss moduli, shear stress first normal difference growth relaxation, relaxation modulus upon step strain creep recovery behavior. Both constant rate experiments were carried out using multiple rheometers over broad temperature range (−35 to 40 °C) while following...
Abstract Electrical and magnetic properties of composite materials prepared by incorporating various nickel‐based fillers different shapes into polyethylene were investigated. The used nickel powders, filamentary flakes, nickel‐coated graphite fibers. particle‐size distributions the determined both before after processing samples. A wide range filler volume fractions used. In some cases, fraction approached maximum packing solid phase to significantly exceed percolation threshold. samples...
A new hybrid methodology that fully integrates the processing capabilities of twin screw extrusion process (conveying solids, melting, dispersive and distributive mixing, pressurization, temperature profiling, devolatilization) with electrospinning is described. The especially suited to dispersion nanoparticles into polymeric binders generation nanoparticle-incorporated fibres nanofibres. technology base demonstrated β-tricalcium phosphate (β-TCP) poly(ε-caprolactone) (PCL) generate...
Abstract Mathematical modeling and simulation of the coupled flow, deformation, heat mass transfer, rate reactions occurring in twin screw extruder allow optimization process parameters barrel geometries. In mathematical extrusion conventional flow boundary condition at walls is no-slip condition. However, most complex fluids, including polymers, polymeric suspensions blends, exhibit wall slip, with slip behavior depending on intrinsic properties materials being processed, operating...
The direct electrostatic printing of highly viscous thermoplastic polymers onto movable collectors, a process known as melt electrospinning writing (MEW), has significant potential an additive biomanufacturing (ABM) technology. MEW the hitherto unrealized fabricating three-dimensional (3D) porous interconnected fibrous mesh-patterned scaffolds in conjunction with cellular-relevant fiber diameters and interfiber distances without use cytotoxic organic solvents. However, this cannot be readily...