Results 111 to 120 of about 48,672 (307)
The use of perfluoroether lubricants in unprotected space environments [PDF]
, 1985 A series of ball bearing tests in simulated space environment are described which determine durability of perfluoroether lubricants. The results of the examination of the test bearings for each stage are described and experimental techniques designed to ...
Baxter, B. H., Hall, B. P.
core +1 more source
Ultra‐High Friction and Adhesion in Hydrogel Layer Driven by Wet‐to‐Dry Transition Dynamics
Advanced Science, EarlyView.This work reveals a critical wet‐to‐dry transition in polyacrylamide hydrogel layers that induces volumetric shrinkage, resulting in enhanced interfacial contact and dramatically increased friction and adhesion. Leveraging this transition enables strong, reversible gripping on diverse surfaces, offering new insights for hydrogel‐based gripping ...
Chenxu Liu +11 more
wiley +1 more source
Solid Lubricants and Coatings for Extreme Environments: State-of-the-Art Survey [PDF]
An investigation was conducted to survey anticipated requirements for solid lubricants in lunar and Martian environments, as well as the effects of these environments on lubricants and their performance and durability.
Miyoshi, Kazuhisa
core +1 more source
, 1976 A composite material is described which will provide low friction surfaces for materials in rolling or sliding contact and is self-lubricating and oxidation resistant up to and in excess of about 930 C.
Sliney, H. E.
core +1 more source
Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy
Advanced Science, EarlyView.Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro +6 more
wiley +1 more source
Vibration/vacuum screening of space lubricants Final report [PDF]
Evaluation of solid film lubricants for ball bearings in space ...
Clauss, F. J., Drake, S. P., Jr.
core +1 more source
Advanced Science, EarlyView.This study introduces a versatile platform for quantifying three dimensional traction forces at bio‐adhesive interfaces. Integrating in situ stereo‐digital image correlation with finite element simulations allows for precise measurement of microscale displacements and traction forces in both dry and wet conditions.
Yingwei Hou, Fusheng Wang, Tao Liu
wiley +1 more source
Twin-Disc Wear Assessment of Solid Stick Flange Lubricants
LubricantsLubrication between the rail gauge face and wheel flange is necessary to improve vehicle performance and reduce component wear. One way to achieve this is to use a solid stick loaded against the wheel flange. This paper details twin-disc testing of eight
Martin David Evans +2 more
doaj +1 more source
Lubricant Selection Manual, Phase 3 [PDF]
Future spacecraft must be designated to operate for very long time periods in space. For example, a target goal for the Space Station is 30 years of operation.
Dufrane, K. F. +2 more
core +1 more source
Chemistry: Space resources for teachers including suggestions for classroom activities and laboratory experiments [PDF]
, 1971 Curriculum supplement to assist general chemistry teachers in updating instruction materials with aerospace ...
Bowman, W. H., Lawrence, R. M.
core +1 more source