Results 51 to 60 of about 875,699 (243)

TRIBOLOGICAL AND MECHANICAL PROPERTIES OF POLYMERIC COMPOSITES REINFORCED BY METALLIC FILLERS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2014
Polymer matrix composites (PMCs) filled with metals are widely studied to be used in industrial applications, such as gears, self-lubricated materials, sliding materials, flooring materials and brake lining materials.
R. A. Ibrahim, A. M. Samy
doaj   +1 more source

Fiber‐Format Flexible Linear Electrostatic Motors

open access: yesAdvanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source

Magnet-Sleeve-Sealed Mini Trochoidal-Gear Pump Prototype with Polymer Composite Gear [PDF]

open access: yesEnergies, 2017
The trochoidal-gear technology has been growing in groundbreaking fields. Forthcoming applications are demanding to this technology a step forward in the conceiving stage of positive displacement machines. The compendium of the qualities and the inherent characteristics of trochoidal-gear technology, especially towards the gerotor pump, together with ...
Gámez Montero, Pedro Javier   +6 more
openaire   +4 more sources

Effect of recycled powder and gear profile into the functionality of additive manufacturing polymer gears

open access: yesRapid Prototyping Journal, 2023
Purpose Polymer laser powder bed fusion (PBF-LB/P) is an additive manufacturing technology that is sustainable due to the possibility of recycling the powder multiple times and allowing the fabrication of gears without the aid of support structures and subsequent assembly.
Calignano, Flaviana   +3 more
openaire   +2 more sources

Metal Compound‐Based Non‐Enzymatic Electrochemical Cholesterol Sensors: Emerging Materials and Mechanistic Insights

open access: yesAdvanced Materials Interfaces, EarlyView.
This review discusses recent progress in metal complex‐based, non‐enzymatic electrochemical sensors for cholesterol detection. We examine metal oxides, metal sulfides, and hybrid nanomaterials, highlighting their catalytic mechanisms and material design strategies.
Longfei (Jack) Yin   +6 more
wiley   +1 more source

A strategy for contact fatigue life prediction of polymer gears via an experimental-simulated hybrid data-driven model

open access: yesFriction
A timely trend in gear transmission involves the replacement of steel with polymers. Nevertheless, the absence of fundamental durability data for polymer gears impedes their reliable application during power transmission. The expensive and time-consuming
Zehua Lu   +3 more
doaj   +1 more source

Study on Liquid Crystal-Polymer Gears.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1995
Attention has been paid to liquid-crystal polymers (hereinafter called LCP) as plastics of the next generation since these have features of high rigidity and small thermal expansion coefficient in addition to excellent heat resistance. Accordingly, in industry, application of LCP to gear materials has been attempted, but at present, data for ...
Tsukamoto, Naohisa   +2 more
openaire   +2 more sources

A comparative experimental study on the diagnostic and prognostic capabilities of acoustics emission, vibration and spectrometric oil analysis for spur gears [PDF]

open access: yes, 2007
Prognosis of gear life using the acoustic emission (AE) technique is relatively new in condition monitoring of rotating machinery. This paper describes an experimental investigation on spur gears in which natural pitting was allowed to occur.
Mba, David   +2 more
core   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke   +5 more
wiley   +1 more source

Challenges in the engineering design, manufacture, and testing of polymer gears

open access: yes
Polymer gears are becoming more and more interesting parts of various machines; they are used in ever-more-demanding operating conditions. Due to their good mechanical properties, lightweight, and low noise during operation, they tend to substitute ...
Huskić, Miroslav,   +2 more
core   +1 more source

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