Results 51 to 60 of about 110,435 (294)

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Evaluation of a novel seriguela gum (Spondias purpurea L.) based flocculant aid for wastewater treatment: effect of carboxymethylation

Revista Brasileira de Ciências Ambientais
Seriguela gum is a barely explored polysaccharide, whose carboxymethylation reaction can expand its applications for water treatment by the increase of negative charges in the chain.
Henety Nascimento Pinheiro, Flavia Freitas Veloso, João Lucas Isidio de Oliveira Almeida, Flávia Oliveira Monteiro da Silva Abreu   +3 more
doaj   +1 more source

ADMINISTRATIVE METHODS OF IMPORT SUBSTITUTION MANAGEMENT OF DEFICIENT TYPES OF MINERAL RAW MATERIALS

Записки Горного института, 2018
Import dependence of Russian consumers on certain types of mineral products: aluminum, manganese and chrome raw materials, titanium, zircon and tin concentrates, ferroniobium, fluorspar and others – increases the stability of many industries.
V. Yu. Khatkov, G. Yu. Boyarko
doaj   +1 more source

Multifunctional graphene nanofiller in flame retarded polybutadiene/chloroprene/carbon black composites

e-Polymers, 2021
To curtail flammability risks and improve material properties, flame retardants (FRs) and fillers are mixed into rubbers. High loadings of aluminum trihydroxide (ATH) and carbon black (CB) are the most used FRs and reinforcing additive, respectively, in ...
Battig Alexander, Fadul Naïssa Abdou-Rahaman, Frasca Daniele, Schulze Dietmar, Schartel Bernhard   +4 more
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Environmental impact assessment of battery boxes based on lightweight material substitution

Scientific Reports
Power battery is one of the core components of electric vehicles (EVs) and a major contributor to the environmental impact of EVs, and reducing their environmental emissions can help enhance the sustainability of electric vehicles. Based on the principle
Xinyu Li, Yuanhao Zhang, Yumin Liao, Guanghai Yu   +3 more
doaj   +1 more source

Functionalizations of Diamantane Dimers

Журнал органічної та фармацевтичної хімії, 2020
Aim. To develop preparative methods for functionalization of diamantane dimers. Results and discussion. The reaction of 1,1′-bisdiamantane with bromine and the subsequent hydrolysis gives 6-hydroxy-1,1′-bіsdіamantane with a yield of 56 %.
Pavel A. Gunchenko, Lesya V. Chernish, Evgeniya Yu. Tikhonchuk, Jonathan Becker, Peter R. Schreiner, Andrey A. Fokin   +5 more
doaj   +1 more source