Results 91 to 100 of about 224,513 (244)

Production of ZnO Nanofibers from Zinc Galvanizing Flue Dust

Metals
This work focuses on the production of ceramic nanofibers from waste materials, which represents a significant contribution to the sustainable use of resources and innovative solutions in the field of nanotechnology.
Klaudia Kundráková, Jana Pirošková, Jarmila Trpčevská, Erika Múdra   +3 more
doaj   +1 more source

Recycling Recycling

, 2019
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openaire   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Two-dimensional correlation infrared spectroscopy reveals the evolution of functional groups governing biochar oxidation resistance

Scientific Reports
To investigate the mechanistic pathways and intrinsic stability of biochar functional groups under controlled oxidation, a novel approach integrating Fourier transform infrared two-dimensional correlation spectroscopy (2D-COS) and moving window 2D-COS ...
Xiaoxiao Zhang, Xiangru Yuan, Xueqi Yang, Zengling Yang, Lujia Han   +4 more
doaj   +1 more source

Selective Extraction of Lithium from Li Batteries by Leaching the Black Mass in Oxalic Acid

Batteries
In this work, a method for leaching black mass from spent Li batteries using oxalic acid was developed and experimentally verified with the objective of selectively separating lithium and cobalt.
Kristina Talianova, Martina Laubertová, Zita Takáčová, Jakub Klimko, Jaroslav Briančin, Simon Nagy, Dušan Oráč   +6 more
doaj   +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

Enhancing Hydrogen Embrittlement Resistance of Al–Zn–Mg–Cu Alloys via Si Microalloying and Optimized Heat Treatment

Metals
7xxx series aluminum alloys are critical structural materials in aerospace applications, but their susceptibility to hydrogen embrittlement (HE) poses significant challenges to service safety and durability.
Huijun Shi, Ruian Hu, Yi Lu, Shengping Wen, Wu Wei, Xiaolan Wu, Kunyuan Gao, Hui Huang, Zuoren Nie   +8 more
doaj   +1 more source

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Approaching fully equiaxial grains of Er/Zr modified selective laser melted Al–Mg–Mn alloys

Journal of Materials Research and Technology
In this study, high-strength Al-8.5Mg-0.78Mn-0.96Er-1.94Zr alloys are prepared by selective laser melting(SLM). The microstructure and mechanical properties of the Al–Mg–Mn–Er–Zr alloys in the as-built and heat-treated states are investigated.
Wu Wei, Yuyan Zhai, Jifei Hu, Jianlei Bi, Zhengjiang Gao, Jiaoxi Yang, Xiaorong Zhou, Xiaolan Wu, Shengping Wen, Hui Huang, Li Rong, Kunyuan Gao, Zuoren Nie   +12 more
doaj   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source