Results 61 to 70 of about 598 (182)
The oxidation and reduction of chromium of stainless steels in an eletric arc furnace [PDF]
The oxidation of chromium during the elaboration of stainless steels occurs with oxygen in solution blown inthe melt and with oxides in the slag. A higher content of silicon in the furnace charge decreases the extent of oxidation of chromium, however ...
B. Arh, F. Tehovnik
doaj
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino +4 more
wiley +1 more source
Effect of Foaming Slag on Removal of Nitrogen in Liquid during 120t BOF Steelmaking Process
The bottom blowing argon is carried out in commercial production of 40 heats 120t BOF steelmaking process, at blowing 15% the C content in metal is 4.0% with slag ingredient (/%) : 21.2FeO, 2.6A12O35.3MnO, 31.2CaO, 11.2MgO, 23.7SiO23.2P2O5and basicity 1 ...
迟云广, 邓志银, 朱苗勇
doaj
Behaviour of foamed slag concrete at high temperatures
Lightweight beams (50 x 75 x 850mm) using foamed slag aggregate, were tested in flexure at steady state temperatures up to 600°C. The properties investigated were thermal movement, ultimate strength, flexural rigidity and weight loss. The results were compared with those of identically dimensioned specimens made from concrete using sintered pulverized ...
openaire +1 more source
End of life tyres are discarded at an alarming rate reflecting the strength of developing countries economy and the intensity of trade and transportation. Conversely, environmental concerns are increasing the need for alternative materials in steelmaking
Zaharia M. +6 more
doaj +1 more source
Structure and properties of a porous wood-mineral composite based on slag-silicate binder with a finely dispersed alumosilicate additive [PDF]
Introduction. The extension of the range of binders, aggregates, and fillers as well as functional additives and structural modifiers for concrete and composite materials currently allows for the production of innovative materials with enhanced ...
Svetlana V. Samchenko +1 more
doaj +1 more source
Batteries From Reused, Recycled, and Surplus Materials
Batteries can become more circular by combining reuse, direct recycling, metallurgical recovery, and material sourcing from industrial surplus streams. This Review highlights how recycled and waste‐derived metals, carbons, polymers, electrolytes, and active materials can be reintegrated into current and emerging batteries, while emphasizing design ...
Jing Yu +16 more
wiley +1 more source
Soda Ash Free Batches for Novel Container Glass Compositions
A series of novel glass compositions incorporating up to 50% recycled cullet is melted from batches free of soda ash. Their viscosity–temperature, liquidus, and electrical conductivity characteristics are comparable to conventional soda–lime—silica glasses, enabling processing in conventional installations while markedly reducing batch‐to‐melt ...
Tomasz Engelmann +2 more
wiley +1 more source
Glass foams were produced using recycled glass and rice husk ash as raw materials. After deep characterization, miniature masonry model tests demonstrated effective thermal insulation when applied as a ceiling lining. The study validates the technical and environmental feasibility of glass foams for sustainable insulating materials in building ...
Carlos Eduardo Keller Bertolo +6 more
wiley +1 more source
Synergistic Effect of Ladle Furnace Slag and Biomass Bottom Ash in Alkali‐Activated Binders
This study investigates the synergistic co‐activation of ladle furnace slag (LFS) and biomass bottom ash (BBA) in alkali‐activated binders. Results indicate that 75 wt% BBA maximizes mechanical strength, reaching 11.1 MPa in compression after 90 days. Amorphous silica from BBA acts as a chemical buffer, mitigating slag expansion while forming a stable ...
Miguel A. Gómez‐Casero +3 more
wiley +1 more source

