Results 81 to 90 of about 101,360 (296)

Technology ability of laser bonding of compacted graphite iron

IOP Conference Series: Materials Science and Engineering, 2018
© Published under licence by IOP Publishing Ltd. Laser welding features of compacted graphite iron are described in this paper. An approach that allows to reduce residual stresses and the probability of occurrence of "hot" cracks in the weld seam as well as to increase the absorption coefficient of laser radiation due to the use of metal powder Ni-Cr-B-
V. A. Pesoshin, R. R. Rakhimov, V. V. Zvezdin, K. V. Klochkova, R. R. Saubanov   +4 more
openaire   +3 more sources

Hard Carbon Derived from Spent Coffee Grounds for Applications in Sodium Ions Batteries

Advanced Sustainable Systems, EarlyView.
Spent coffee grounds are converted into hard carbon through a two‐stage pyrolysis process, increasing carbon content from 52 to 90%. The material exhibits graphitic domains and improved sodium storage properties, with stable performance at high currents. Full‐cell tests confirm its energy storage potential, highlighting a sustainable and cost‐effective
Nicolò Pianta, Domenico Antonio Florenzano, Roberto Lorenzi, Luciano Navarini, Carlo Santoro, Riccardo Ruffo   +5 more
wiley   +1 more source

Influence of Al and Ti on microstructure and quality of compacted graphite iron castings [PDF]

Metalurgija, 2009
The contribution is aimed at study of influence of chemical composition of compacted graphite cast iron (CGI) on microstructure and surface quality of castings, particularly on the occurrence of pinholes. It has been found out that aluminium and titanium
T. Elbel, J. Hampl
doaj  

Advancements in Biochar as a Sustainable Adsorbent for Water Pollution Mitigation

Advanced Science, EarlyView.
Biochar, obtained through pyrolysis of organic waste, serves as a sustainable solution for wastewater treatment due to its adaptability and low‐cost nature. This review comprehensively examines recent advancements in biochar production, functional modifications, and applications, highlighting the integration of machine learning and artificial ...
Devika Laishram, Su‐Bin Kim, Seul‐Yi Lee, Soo‐Jin Park   +3 more
wiley   +1 more source

High-Speed Machining of Malleable Cast Iron by Various Cutting Tools Coated by Physical Vapor Deposition

Chinese Journal of Mechanical Engineering, 2021
The coating material of a tool directly affects the efficiency and cost of machining malleable cast iron. However, the machining adaptability of various coating materials to malleable cast iron has been insufficiently researched.
Suyang Li, Haisheng Lin, Tingjie Zhang, Jianbo Sui, Chengyong Wang   +4 more
doaj   +1 more source

Graphene Nanofibers by Integrated Manufacturing of Electrospinning and Laser Graphitization for Miniaturized Energy Storage Devices

Advanced Science, EarlyView.
Integrated manufacturing combines electrospinning and laser graphitization to produce graphene nanofibers (GNFs) from fluorinated polyimide (fPI). GNFs, with meso‐ and micropores, enhance micro‐supercapacitors performance, demonstrating energy density over two orders of magnitude higher than conventional ones, making them ideal for miniaturized energy ...
Bumjun Park, Shirin Movaghgharnezhad, Seung Min Lee, Yonghyeon Park, Sejin Son, Yun Suk Huh, Pilgyu Kang   +6 more
wiley   +1 more source

Fracture mechanics and reliability of rupture of cast iron rotating disc

مجلة النهرين للعلوم الهندسية, 2009
In this paper, the crack propagation in opening mode (Mode I) for three kinds of cast iron rotating disc: Flake graphite cast iron disc, Compacted Vermicular cast iron disc, and Spheroidal graphite cast iron disc are analysed by using Boundary Element ...
Haider Hadi Jasim
doaj  

Technological pecularities of producing cast iron with spherical graphite using a fast-cooled copper-magnesium ligature

Литьë и металлургия, 2020
Various modifiers are used for non-furnace processing of cast iron. Some of them are designed for inoculating modification, which improves mechanical properties and eliminates the appearance of whiteness in castings, while others are designed for ...
A. G. Slutsky, I. L. Kulinich, V. A. Sheinert, V. A. Stefanovich, R. E. Trubitsky, A. V. Kotkov   +5 more
doaj   +1 more source

Simplified ResNet approach for data driven prediction of microstructure-fatigue relationship [PDF]

arXiv, 2020
The heterogeneous microstructure in metallic components results in locally varying fatigue strength. Metal fatigue strongly depends on size and shape of non-metallic inclusions and pores, commonly referred to as "defects". Nodular cast iron (NCI) contains graphite inclusions (nodules) whose shape and frequency influence the fatigue strength.
arxiv  

Silicon Carbide Photonic Crystal Photoelectrode

Advanced Science, EarlyView.
A 3C‐SiC photoelectrode with a slanted parabolic pore photonic crystal architecture enhances photogeneration for efficient photoelectrochemical water splitting through the remarkable light‐trapping capabilities of photonic crystal slow‐light modes.
Xiwen Zhang, Sajeev John
wiley   +1 more source