Results 91 to 100 of about 279,452 (299)

On the Dynamical Ferromagnetic, Quantum Hall, and Relativistic Effects on the Carbon Nanotubes Nucleation and Growth Mechanism

, 2007
The mechanism of carbon nanotube (CNT) nucleation and growth has been a mystery for over 15 years. Prior models have attempted the extension of older classical transport mechanisms.
A.R. Biris, Alexandru S. Biris, Baker, Baker, Berger, Biris, Couteau, D. Lupu, De Martino, Dresselhaus, Enkeleda Dervishi, Iijima, Koshio, Kroto, Little, Little, Reginald B. Little, Schmitt, Thess, Tibbetts, Wang, Yang Xu, Yonei, Zhongrui Li, Zhou   +24 more
core   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Effect of Strain Rate on the Mechanical Properties of Crystallized Poly(L-lactide)

Journal of Biomechanical Science and Engineering, 2008
In this study, effects of strain rate on the mechanical properties of injection-molded poly(L-lactide) (PLLA) were investigated experimentally. The effect of crystallinity on the strain rate dependency of mechanical properties of PLLA was also examined ...
Shusaku YAMADI, Satoshi KOBAYASHI
doaj   +1 more source

Understanding crystallinity in aromatic polyimides [PDF]

Aromatic polyimides are a class of polymers that show remarkable thermal stability, strength, and toughness. These properties make them attractive candidates for use in high-performance carbon fiber composites for airborne and spaceborne structural ...
Celarier, Edward A.
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Hot Plate Annealing at a Low Temperature of a Thin Ferroelectric P(VDF-TrFE) Film with an Improved Crystalline Structure for Sensors and Actuators

Sensors, 2014
Ferroelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) copolymer 70/30 thin films are prepared by spin coating. The crystalline structure of these films is investigated by varying the annealing temperature from the ferroelectric phase to
Rahman Ismael Mahdi, W. C. Gan, W. H. Abd. Majid   +2 more
doaj   +1 more source

Dust crystallinity in protoplanetary disks: the effect of diffusion/viscosity ratio

, 2007
The process of turbulent radial mixing in protoplanetary disks has strong relevance to the analysis of the spatial distribution of crystalline dust species in disks around young stars and to studies of the composition of meteorites and comets in our own ...
Balbus, Balbus, Bjorkman, Bockelée-Morvan, C. P. Dullemond, Carballido, Chiang, Clarke, Dorschner, Dullemond, Dullemond, Gail, Gammie, Gibbard, Harker, Ilgner, Johansen, Johansen, Jäger, Keller, Klerner, Leinert, Lucy, Lynden-Bell, Min, Morfill, Pringle, Regev, Rüdiger, Semenov, Semenov, Servoin, Shakura, Stone, Tutukov, Urpin, Voelk, Ya. Pavlyuchenkov, Zolensky   +38 more
core   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Determination of the Band Gap Energy of SnO₂ and ZnO Thin Films with Different Crystalline Qualities and Doping Levels

Electronic Materials
This research is on the structural, optical, and electrical properties of SnO2 and ZnO thin films, which are increasingly used in many electronic devices, including gas sensors, light-emitting diodes, and solar cells.
Cecilia Guillén
doaj   +1 more source