Results 61 to 70 of about 139,709 (350)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 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

World-ecology: a global conversation

SOCIOLOGIA URBANA E RURALE, 2019
Jason W. Moore replies to Gennaro Avallone’s questions and succeeds in simultaneously providing an introductory presentation of world-ecology’s fundamental concepts and a critical discussion of some problematic issues recently emerged within the political ecology interna-tional debate.
openaire   +2 more sources

Metabolic Rift or Metabolic Shift? Dialectics, Nature, and the World-Historical Method [PDF]

, 2017
In the flowering of Red-Green Thought over the past two decades, metabolic rift thinking is surely one of its most colorful varieties. The metabolic rift has captured the imagination of critical environmental scholars, becoming a shorthand for capitalism’
A Khoury El, A Malm, A Sohn-Rethel, A Toscano, A Wood, AA Camba, AW Crosby, B Clark, B Clark, B Clark, B Clark, B Clark, B Gill, B Ollman, B Thomas, C Birch, C Campbell, C Meillassoux, C Merchant, C Merchant, C Parenti, C Post, C Tilly, C Werlhof von, CAM Duncan, CR Cox, CW Mills, D Abulafia, D Arnold, D Cosgrove, D Haraway, D Haraway, D Haraway, D Harvey, D Harvey, D Harvey, D Harvey, D Sayer, D Tomich, E Altvater, E Galeano, ED Mellilo, F Braudel, F Braudel, F Braudel, FML Thompson, G Arrighi, G Cunfer, G Lukács, GR Taylor, H Friedmann, H Lefebvre, H Nader, I Wallerstein, J Bennett, J Bolthouse, J Cañizares-Esguerra, J Foster, J Leerssen, J McBrien, J Ohlmeyer, J Poly, J Sued-Badillo, J Vries de, Jason W. Moore, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JB Foster, JE Kicza, JH Galloway, JR Kloppenburg, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, JW Moore, K Kosík, K Marx, K Marx, K Marx, K Marx, K Oloff, K Pomeranz, L Mumford, LH Brockway, M Davis, M Dixon, M Fischer-Kowalski, M Fischer-Kowalski, M Goldman, M Overton, M Rai, M Schneider, M Taylor, M Wackernagel, MJ Watts, MJ Watts, ML Frame, N Smith, O Patterson, P Bourdieu, P Burkett, P Burkett, P Hulme, P James, P Mancus, P Murray, P Patel, PJ Taylor, R Bhaskar, R Brenner, R Clausen, R Levins, R Sobel, R Wallace, R Williams, R York, R York, R York, RA Walker, RC Lewontin, RE Dunlap, S Deckard, S Engel-Di Mauro, S Federici, SB Longo, SB Longo, SG Bunker, T Weis, TK Hopkins, W Cronon, W Cronon, W Modest, W Stavig   +154 more
core   +2 more sources

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz, Ulziikhuu Otgonbayar, Alexander Adamczyk, Farhan Hossain, Daniel Vogt, Johan Berg Pettersen, Alexandros Charitos   +6 more
wiley   +1 more source

Eko-Spiritualisme: Sebuah Keniscayaan pada Era Kontemporer

Humaniora, 2013
This paper provides a new perspective of looking at our natural environment with a spiritual perspective. The main argument of this paper was inspired by the emergence of the reality of our natural environment is increasingly damaged by the implications ...
Frederikus Fios
doaj   +3 more sources

Songs of Mobility and Belonging: Gender, Spatiality and the Local in Southern Africa’s Transfrontier Conservation Development [PDF]

, 2013
Western Maputaland is located in the borderlands of South Africa, Mozambique and Swaziland. The combination of poverty, rural remoteness and exceptional ecological diversity has long made the region a target of conservationists and development planners ...
Impey, Angela
core   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source