Results 41 to 50 of about 304,340 (156)

THE TRIBOLOGICAL BEHAVIOR OF POLYETHYLENE FILLED BY NANOPOWDER OF ALUMINUM OXIDE [PDF]

Journal of the Egyptian Society of Tribology, 2016
The present study investigates the abrasive wear of surfaces subjected to abrasive contaminants. Polyethylene (PE) filled with nanoparticles of aluminum oxide were used as coating for steel specimens.  Their effect on wear of moving surfaces contaminated
A. A. Ezzat, M. O. Mousa, W. Y. Ali
doaj   +1 more source

Bidirectional Soft Catalysts for Improved Power Performance of Li‐S Batteries

Advanced Science, EarlyView.
A soft polymer‐metal catalyst is integrated into the binder to create a catalytically active microenvironment that accelerates bidirectional sulfur redox kinetics in lithium‐sulfur batteries. A model polyvinyl alcohol‐Cu catalyst enables high areal capacities at demanding current densities and stable cycling in pouch‐cell prototypes at 0.5 C, achieving
Maleesha M. Nishshanke, Petar Jovanovic, Swarit Dwivedi, Declan McNamara, Akshat Tanksale, Mahdokht Shaibani, Matthew Hill, Mainak Majumder   +7 more
wiley   +1 more source

The effect of aluminum oxide on thresholds of laser ignition of aluminum nanopowder and iron oxide mixture

Известия Томского политехнического университета: Инжиниринг георесурсов, 2009
The paper introduces the results of experimental researches on pyrotechnic composition (aluminum nanopowder + iron oxide) ignition by laser radiation (λ=1,06 µm) with pulse duration 3,5 ms. The authors have measured energy thresholds of laser ignition of
V. V. Medvedev, A. P. Ilyin, A. A. Reshetov   +2 more
doaj   +2 more sources

RESEARCH OF STRUCTURE AND PHYSICAL AND MECHANICAL PROPERTIES OF CERAMICS BASED ON ALUMINUM AND ZIRCONIUM OXYNITRIDES

Известия Томского политехнического университета: Инжиниринг георесурсов, 2022
Relevance. The development of geology in the XXI century is impossible without solving the fundamental problems of modern materials science, caused by the tasks of creating new materials for functional purposes.
Sergey V. Matrenin, Andrey V. Mostovshchikov, Yuriy A. Mirovoy, Alexandra O. Chudinova   +3 more
doaj   +1 more source

Precipitation Synthesis of CeO2 Nanopowder Pigment

, 2023
Nanopowder pigments of CeO2 and CeO2:Fe were synthesized by precipitation method at a moderate calcination temperature of 500oC.  The pigments exhibited pale yellow for CeO2 nanopowder and brick red for CeO2:Fe nanopowder.
Yayuk Astuti, Triadiyaksa, Pandji, Astuti, Yayuk, Nurhasanah, Iis, Iis Nurhasanah, Pandji Triadiyaksa   +5 more
core   +1 more source

Utilisation of chicken eggshell nanopowder on physicochemical quality, microstructure, and amino acid profile of beef patties

, 2023
Chicken eggshells are a source of calcium and protein that can be added to restructured meat products, including patties. This study aimed to improve the chemical quality of beef patties with the addition of chicken eggshell nanopowder, including pH ...
Herly Evanuarini, Adelya Desi Kurniawati, Uun Yanuhar, Agus Susilo   +3 more
core   +1 more source

Synthesis and properties of aluminum-based composite materials for high operating temperatures [PDF]

, 2020
Aluminum-based composite materials reinforced with ceramic particles are of great practical interest due to their potentially high physical and mechanical properties. In this work, Al–Al4C3 composites are obtained by a hot-pressing method.
Kulkov, Sergey N., Vorozhtsov, Sergey Alexandrovich, Vorozhtsov, Sergey A., Khrustalyov, Anton P., Khrustalyov, A.   +4 more
core   +2 more sources

Application of Statistical Methods to Accurately Assess the Effect of Gamma Aluminum Oxide Nanopowder on the Hardness of Composite Materials with Polyester–Glass Recyclate

, 2022
Polymer composites are materials that are used in many industries. Their wide application has a direct impact on the amount of post-production and post-consumer waste. The global problem with recycling, especially of fiber-reinforced polymeric materials,
Żuk, Daria, Daria Żuk, Norbert Abramczyk, Abramczyk, Norbert, Katarzyna Panasiuk, Drewing, Sebastian, Panasiuk, Katarzyna, Sebastian Drewing   +7 more
core   +1 more source

Mixed‐Scale Powder Enables 3D Printing of Tungsten Alloy

Rare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Laser powder bed fusion (LPBF) offers a promising route for manufacturing tungsten alloy components with complex geometries, whereas W–Ni–Fe alloys remain the most widely used tungsten alloys because of their excellent overall performance.
Jingjia Sun, Dongdong Gu, Jiahui Yang, Qi Wu   +3 more
wiley   +1 more source

Stability of products of combusting in air aluminum nanopowder with titanium and zirconium dioxides to hydrofluoric acid action in reductive media

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the research is related to the need to obtain titanium and zirconium nitrides using less energy-consuming methods, in particular by combustion synthesis of nitrides in the air using aluminum nanopowder as a reductor.
Ekaterina Viktorovna Shinkevich, Lyudmila Olegovna Root   +1 more
doaj   +2 more sources