Results 81 to 90 of about 48,672 (307)

Porous Bi2S3 Bulk With Excellent Thermoelectric Performance by Solid States Replacement and Low Melting‐Point Metal Volatilization

open access: yesAdvanced Materials, EarlyView.
By introducing FeCoNi medium‐entropy alloy, the bismuth sulfide (Bi2S3) material achieves a record‐high ZT of 1.1 at 773 K, owing to the solid‐states replacement reaction and the volatilization of low melting‐point metal. This strategy is also applicable to other sulfur‐based thermoelectric materials.
Zi‐Yuan Wang   +9 more
wiley   +1 more source

A State-of-the-art overview

open access: yesManufacturing Review, 2014
Ever-increasing demand for severe work conditions, high-performance and long-life has been drivers for developing new low-friction and wear resistant coatings and surfaces for high temperature forming tools.
Zhang Zhenxue, Dong Hanshan
doaj   +1 more source

Direct Ink Writing 3D Printing of Recyclable and Thermally Stable Vitrimers

open access: yesAdvanced Materials Technologies, EarlyView.
Vitrimers hold great promise in additive manufacturing as defect‐insensitive, repairable, and recyclable feedstocks. A thin‐film additively manufactured process is developed for a high‐performance vitrimer that is difficult to process traditionally.
Louis O. Vaught   +2 more
wiley   +1 more source

Testing and evaluation of solid lubricants for gas bearings [PDF]

open access: yes
The testing and results of testing solid film lubricants for gas lubricated bearing applications are reported. The tests simulated operational hazards of tilting pad gas bearings.
Albrecht, P. R., Fischer, W. H.
core   +1 more source

Metallic film diffusion for boundary lubrication Patent [PDF]

open access: yes, 1967
Metallic film diffusion for boundary lubrication in aerospace ...
Buckley, D. H., Johnson, R. L.
core   +2 more sources

Laser‐Based Solidification of Cermets/Cemented Carbides: Processing‐Microstructure‐Property Relationships

open access: yesAdvanced Materials Technologies, EarlyView.
Recent research on laser‐processed cermets and cemented carbides highlights significant advancements, yet a notable paucity of studies and persistent challenges remain. Efforts are increasingly focused on developing low‐cost, environmentally friendly cermets as alternatives to conventional materials.
Himanshu Singh Maurya   +2 more
wiley   +1 more source

Bearings use dry self-lubricating cage materials [PDF]

open access: yes, 1968
Rolling element bearings in spacecraft mechanical systems use solid lubricant composites of polytetrafluoroethylene in the bearing cage which functions as the lubricant reservoir. The cage spaces the rolling elements equally and provides the lubricant at
Anderson, W. J.   +2 more
core   +1 more source

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