Results 71 to 80 of about 23,892 (216)

Fatigue Strength in Additive Toolmaking: A Study of Metal Binder Jetting and Electron Beam Melting for Processing Carbide‐Rich Cold‐Work Tool Steels

steel research international, EarlyView.
Focusing on the critical tap hole region of the blast furnace, this work examines binder characteristics, prepares tap hole clay with different formulations, and evaluates their physical properties. The findings confirm the advantages of composite binders and offer a new binder option for tap hole clay.
Frederik Tegeder, Lennart Mirko Scholl, Sandra Wieland, Christian Weck, Marie Franke‐Jurisch, Alexander Bezold, Thomas Weißgärber, Christoph Broeckmann   +7 more
wiley   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

EFFECT OF SINTERING TEMPERATURE ON TUNGSTEN CARBIDE DENSITIES AND POROSITY

Jurnal Teknik Mesin
The manufacture of tungsten carbide begins with mixing WC with Co in the milling process and then the compaction process is carried out using a compacting machine. After that, the sintering process is carried out to increase the strength of the material.
Ade Saputra Ade
doaj   +1 more source

Nanomaterials' Multigenerational Effects by Single and Joint Exposure in Non‐mammalian Models

Environmental Toxicology, EarlyView.
ABSTRACT Nanotoxicology has mainly focused on single‐generation studies, leaving multigenerational toxicity underexplored. Having animal welfare recently gained importance, we aimed to provide the state‐of‐the‐art of knowledge about multigenerational effects in non‐mammalian models in the case of nanomaterials (NM) single and joint exposure to other ...
Andy Joel Taipe Huisa, Analía Ale, Azael Francisco Silva Neto, Lorena De Mendonça Lucena, Marcelo Estrella Josende, Milena Ferreira de Lima, Rhayanny Kethylly Pereira Santos, Martín Federico Desimone, Priscila Gubert, José María Monserrat   +9 more
wiley   +1 more source

Fourteen‐analyser high‐resolution hard X‐ray emission spectrometer at I20 beamline at Diamond Light Source

Journal of Synchrotron Radiation, EarlyView.
A high‐efficiency 14‐analyser X‐ray emission spectrometer that offers novel capabilities has been developed for I20‐Scanning at Diamond Light Source.We report the technical design, implementation and operation of a newly developed X‐ray emission spectrometer on the I20 beamline at Diamond Light Source.
Shusaku Hayama, David Butler, Leo Cahill, J. Frederick W. Mosselmans, Steven Richards, Silvia Ramos, Iain Hall, Huw Shorthouse, Sofia Diaz-Moreno   +8 more
wiley   +1 more source

Phase content of metal-matrix composites of the system Fe-W-C which are formed by plasma precipitation

Advanced Engineering Research, 2007
Melt crystallization peculiarities of the system have been investigated by means of X-Ray diffraction and microstructure analysis. It is shown that content changing of hexagonal tungsten carbide in the mixture essentially influences processes of phases ...
A.A. RYZHKIN, A.V. ILYASOV
doaj  

Robust mold fabricated by femtosecond laser pulses for continuous thermal imprinting of superhydrophobic surfaces

Materials Research Express, 2019
Superhydrophobic surfaces rely on a large number of surface micro/nano structures to increase the roughness of a material. Producing such structures is possible through a multitude of relatively slow methods; however, economic and large scale production ...
Zhibing Zhan, Erik M Garcell, Chunlei Guo   +2 more
doaj   +1 more source

Occupational exposure to metal welding and cataract: A systematic review and meta‐analysis

Acta Ophthalmologica, EarlyView.
Abstract Background Metal welding generates ultraviolet radiation (UVR) of cataractogenic wavelengths, and UVR emitted during welding has been associated with cataract formation, but results from prior studies are conflicting. Methods We conducted a systematic review and meta‐analysis of epidemiological studies addressing associations between ...
Jakob Bjerager, Esben Meulengracht Flachs, Martin Nissen Hermann, Jens Peter Ellekilde Bonde, Ingrid Sivesind Mehlum, Stinna Skaaby   +5 more
wiley   +1 more source

Does attachment removal damage enamel? Influence of adhesive, resin, and bur on surface integrity

European Journal of Oral Sciences, EarlyView.
Abstract To evaluate the combination of composites, adhesive systems, and burs considering artificial accelerated aging (AAA), influence enamel roughness and morphology after attachment removal. One hundred ninety‐two bovine enamel specimens were divided according to composite type (Transbond XT, flowable, bulk‐fill flowable), adhesive system (Single ...
Marilia Daniela Busnardo Canadas, Ana Beatriz Silva Sousa, Fernanda de Carvalho Panzeri   +2 more
wiley   +1 more source

Evaluation of the Effects of Different Types of Finishing and Polishing Protocols on the Surface Roughness of Restorative Materials

European Annals of Dental Sciences
Purpose: This study aimed to evaluate the effects of different types of finishing and/or polishing protocols on the surface roughness of two different restorative materials that are frequently preferred in pediatric dentistry.
Şaziye Sarı, Akif Demirel, Shadia Majid Abubakary   +2 more
doaj   +1 more source