Results 101 to 110 of about 1,558 (261)
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt +2 more
wiley +1 more source
O crescimento do consumo de aço e da sua tecnologia de produção tem demandado proporcional desenvolvimento dos refratários, sendo umas das principais exigências o aumento de sua vida útil e a redução do tempo de parada dos equipamentos revestidos por ...
F. T. Ramal Jr +2 more
doaj +1 more source
Corundum and Bauxite Refractory Shotcretes based on Activated Waste Coal Ash: Investigation of Thermally Induced Properties Change [PDF]
The necessity for application of activated secondary raw materials in refractory industry is caused by a growing demand for refractory castables with advanced properties and continuous technological evolution of high-temperature materials.
Andrić, Ljubiša +4 more
core
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam +7 more
wiley +1 more source
Uma alumina de transição capaz de formar fases hidratadas em água tem sido utilizada como ligante hidráulico alternativo para concretos refratários. Entretanto, têm-se observado que a secagem de concretos preparados com este ligante é normalmente mais ...
I. R. Oliveira, V. C. Pandolfelli
doaj +1 more source
Studying the specific features of the hydration processes of alumina cements based on the compounds of CaO–NiO–Al₂O₃ system [PDF]
The article gives the results of studying hydration processes occurring in cement synthesis using waste products of chemical industry. Cement clinker was synthesized with the relation of initial raw components, calcium-containing water treatment waste ...
Khrystych, E. V. +5 more
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Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings
This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström +3 more
wiley +1 more source
Grandes esforços têm sido empregados nas tentativas de substituição do cimento de aluminato de cálcio por outros tipos de agentes ligantes em concretos refratários.
M. R. Ismael +2 more
doaj +1 more source
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng +4 more
wiley +1 more source

