Results 101 to 110 of about 289,222 (269)

Enhanced Electroluminescence From Si Quantum Dots-Based Light-Emitting Devices With Si Nanowire Structures and Hydrogen Passivation

IEEE Photonics Journal, 2016
Enhanced electroluminescence (EL) has been achieved from the light-emitting devices containing Si quantum dots/SiO2 multilayers deposited on Si nanowire arrays because of the good antireflection characteristics of Si nanowire structures, which ...
Y. Y. Zhai, Y. Q. Cao, Z. W. Lin, M. Q. Qian, J. Xu, W. Li, L. Xu, K. J. Chen   +7 more
doaj   +1 more source

Microstructures and mechanical properties of pure tantalum processed by high-pressure torsion

, 2014
A body-centred cubic (BCC) structure metal, tantalum, was processed by high- pressure torsion (HPT) at room temperature with different numbers of rotations. The microstructural evolution was studied by electron backscatter diffraction (EBSD).
Huang, Yi, Langdon, Terence G., Maury, Nicolas, Zhang, Nian Xian   +3 more
core   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Tunable and parabolic piezoelectricity in hafnia under epitaxial strain

Nature Communications
Piezoelectrics are a class of functional materials that have been extensively used for application in modern electro-mechanical and mechatronics technologies.
Hao Cheng, Peijie Jiao, Jian Wang, Mingkai Qing, Yu Deng, Jun-Ming Liu, Laurent Bellaiche, Di Wu, Yurong Yang   +8 more
doaj   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Local Entropy Characterization of Correlated Random Microstructures

, 1996
A rigorous connection is established between the local porosity entropy introduced by Boger et al. (Physica A 187, 55 (1992)) and the configurational entropy of Andraud et al. (Physica A 207, 208 (1994)).
A. Beghdadi, Andraud, Andraud, B. Virgin, Bachmat, Beghdadi, Boger, C. Andraud, E. Haslund, Hansen, Haslund, Hilfer, Hilfer, Hilfer, Hilfer, Hilfer, Hilfer, J. Lafait, Lu, O'Neil, R. Hilfer, Stauffer, Virgin   +22 more
core   +2 more sources

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

Advanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge, Ahsan Irshad, Umar Jamil, Srosh Fazil, Khuram Liaqat, Kashif Shahzad, Fakhar Alam, Mehboob Alam   +7 more
wiley   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Harnessing optical forces with advanced nanophotonic structures: principles and applications

Discover Nano
Non-contact mechanical control of light has given rise to optical manipulation, facilitating diverse light-matter interactions and enabling pioneering applications like optical tweezers.
Geze Gao, Tianhua Shao, Tianyue Li, Shuming Wang   +3 more
doaj   +1 more source

Repairing atomic vacancies in single-layer MoSe2 field-effect transistor and its defect dynamics

npj Quantum Materials, 2017
Two-dimensional materials: Repairing atomic defects via solution processing Defects can heavily influence the electrical transport properties of three-dimensional materials. But their impact becomes even more pronounced in low-dimensional systems. Fengqi
Yuze Meng, Chongyi Ling, Run Xin, Peng Wang, You Song, Haijun Bu, Si Gao, Xuefeng Wang, Fengqi Song, Jinlan Wang, Xinran Wang, Baigeng Wang, Guanghou Wang   +12 more
doaj   +1 more source