Results 141 to 150 of about 48,672 (307)
Lubricant effects on bearing life [PDF]
Lubricant considerations for rolling-element bearings have within the last two decades taken on added importance in the design and operation of mechanical systems.
Zaretsky, Erwin V.
core +1 more source
Molybdenum disulfide mixtures make effective high-vacuum lubricants [PDF]
, 1964 Five different mixtures of molybdenum disulfide are found to be effective bearing lubricants when tested at very low pressures and high ...
core +1 more source
Evaporation‐Driven Solutal Marangoni Control of Rayleigh–Taylor Instability in Inverted Films
Advanced Science, EarlyView.Inverted liquid films, like paint on a ceiling, are inherently unstable under gravity. This work shows that selective evaporation in volatile binary mixtures generates solutal Marangoni stresses that either suppress or amplify the Rayleigh Taylor instability.
Minwoo Choi, Hyejoon Jun, Hyoungsoo Kim
wiley +1 more source
Controlled-leakage sealing of bearings for fluid lubrication in a space vacuum environment [PDF]
Optimal design of sealed fluid lubrication system for bearings in space vacuum ...
Silversher, H. I.
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Intelligent Soft Opto‐Magnetic Robot for Minimally Invasive Interventional Therapy
Advanced Science, EarlyView.An intelligent soft opto‐magnetic (iSOM) robot is developed that integrates remote magnetic actuation, skin‐mimic tactile perception, and photothermal ablation in a near‐millimeter‐scale design. It enables precise intraluminal navigation and localized ablation while providing real‐time optical feedback to support safe and accurate minimally invasive ...
Jingjing Guo +13 more
wiley +1 more source
, 1972 The advantages of the relatively expensive fluorocarbon lubricants are given as a low-speed coeff. of friction, (the static coeff. is lower than the dynamic coeff.), a low surface energy, low volatility, resistance to temp. and to vacuum, and clean color. Techniques are described for their phys.
openaire +1 more source
Advanced Science, EarlyView.A skin‐inspired multilayered coating system is developed to integrate multiple, often conflicting, functions of self‐healing capability, strong liquid repellency, long‐term corrosion resistance, and robust adhesion, to tackle diverse challenges in engineering services.
Bingzhi Li +8 more
wiley +1 more source
Advanced Science, EarlyView.A novel dendritic nano‐based slippery coating (DNSC), fabricated by encapsulating carboxyl silicone oil within amino dendritic silica nanoparticles and co‐embedding them in an epoxy resin matrix. The dendritic architecture enhances nanoparticle dispersion in the matrix and establishes mechanical interlock.
Shu Zhang +12 more
wiley +1 more source
Advanced Science, EarlyView.An ultrasoft yet tough organohydrogel (AQGL) with 5800% stretchability and 14.3 kPa modulus is developed via a novel molecular chain lubrication strategy. It features optical transparency, drying/freezing (−40°C) tolerance, antibacterial activity, conductivity, self‐healing, and adhesiveness.
Si Wang +9 more
wiley +1 more source
Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication
Advanced Science, EarlyView.This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun +13 more
wiley +1 more source