Results 91 to 100 of about 733,717 (305)

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

Analysis of the Thermal Elastohydrodynamic Lubrication Performance of Water-Lubricated Tenmat Bearing

Jixie chuandong, 2015
The elastohydrodynamic lubrication numerical analysis of water-lubricated Tenmat bearing is carried out by using the Reynolds equation with thermal effect.The effects of load,speed and shaft diameter on the pressure and film thickness of Tenmat bearing ...
Dong Ning, Wang Youqiang, Liu Qian, Huang Xingbao   +3 more
doaj  

Effect of Grain Size and Film Thickness on the Thermoelectric Properties of Flexible Sb2Te3 Thin Films

Advances in Materials Science and Engineering, 2019
In this work, stoichiometric Sb2Te3 thin films with various thicknesses were deposited on a flexible substrate using RF magnetron sputtering. The grain size and thickness effects on the thermoelectric properties, such as the Seebeck coefficient (S ...
Pornsiri Wanarattikan, Piya Jitthammapirom, Rachsak Sakdanuphab, Aparporn Sakulkalavek   +3 more
doaj   +1 more source

On the Temperature and Lubricant Film Thickness Distribution in EHL Contacts with Arbitrary Entrainment

Lubricants, 2018
An understanding of mechanisms which are responsible for elastohydrodynamic lubricant film formation under high sliding conditions is necessary to increase durability of machine parts.
Milan Omasta, Jakub Adam, Petr Sperka, Ivan Krupka, Martin Hartl   +4 more
doaj   +1 more source

Scale-Invariant Dissipationless Chiral Transport in Magnetic Topological Insulators beyond the Two-Dimensional Limit

, 2014
We investigate the quantum anomalous Hall Effect (QAHE) and related chiral transport in the millimeter-size (Cr0.12Bi0.26Sb0.62)2Te3 films. With high sample quality and robust magnetism at low temperatures, the quantized Hall conductance of e2/h is found
Fan, Yabin, Guo, Shih-Ting, He, Liang, Jiang, Ying, Kou, Xufeng, Lang, Murong, Lee, Ting-Kuo, Lee, Wei-Li, Murata, Koichi, Nie, Tianxiao, Pan, Lei, Shao, Qiming, Tang, Jianshi, Wang, Kang L., Wang, Yong   +14 more
core   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

Thick film bonding [PDF]

, 1979
The project was undertaken to determine the characteristics of thick film conductors that affect thermocompression bonding. Thick film inks were analyzed to determine compositional characteristics that could be used as acceptance criteria. Analytical methods evaluated included thermogravimetric analysis, pyrolysis gas chromatography, infrared ...
openaire   +2 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Influence of Lubricant Properties on Elastohydrodynamic Oil Film Thickness in Angular Contact Ball Bearings: A Numerical Investigation

Applied Mechanics
Predicting oil film thickness at ball–raceway contacts under elastohydrodynamic lubrication (EHL) conditions remains a complex tribological challenge. This complexity arises from dynamic variations in contact load, rotational speed, hydrodynamic effects,
Hikmet Bal
doaj   +1 more source

Isothermal elastohydrodynamic lubrication of point contacts. 4: Starvation results [PDF]

The influence of lubricant starvation on minimum film thickness was investigated by moving the inlet boundary closer to the contact center. The following expression was derived for the dimensionless inlet distance at the boundary between the fully ...
Dowson, D., Hamrock, B. J.
core   +1 more source