Results 121 to 130 of about 27,054 (290)

Interaction of MgO Recyclate‐Based Cermet Anode With KF‐AlF3‐Al2O3 at 800°C During Laboratory Scale Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain, Alexander Adamczyk, Felipe Alejandro Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

The scattering and extinction properties of nanodiamonds

, 2009
The study of scattering and extinction properties of possible nanodiamond grains in the ISM are reported. Calculations using Discrete Dipole Approximation (DDA) for varying ellipsoidal shapes and sizes from 2.5 to $10 nm$ are considered.
Aannestad, Acke, Allamandola, Anders, Andersen, Banhart, Bevington, Binette, Binette, Bohren, Cardelli, Cardelli, Cecchi-Pestillini, Chang, Clayton, Dai, Daulton, Davydov, de Diego, Dorschener, Draine, Draine, Draine, Draine, Draine, Duley, Duley, Fitzpatrick, Fitzpatrick, Fitzpatrick, Garai, Goto, Guillois, Gupta, Hecht, Henning, Hong, Iatı, Jones, Kouchi, Krueger, Kwon, Landt, Le Guillou, Lewis, Lewis, Li, Li, Li, Li, Li, Mathis, Mathis, Mathis, Mutschke, Nuth, Nuth, Ogmen, Pirali, Purcell, Rakesh K. Rai, Raty, Saslaw, Shantanu Rastogi, Sheu, Sorrell, Sorrell, Sun, Ugarte, Ugarte, Vaidya, Valencic, Van Kerckhoven, Voshchinnikov, Whittet, Yastrebov, Zaiser, Zinner, Zubko   +78 more
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

Particle Accretion in Microgravity. I. Particle Sizes and Bulk Densities

The Planetary Science Journal
The precise mechanisms related to the accretion of protoplanetesimals from dust in protoplanetary disks (PPDs) are poorly understood. In order to better understand the early stages of planet formation and the growth of millimeter–centimeter agglomerates,
Akbar D. Whizin, Daniel D. Durda, Constantine C. C. Tsang, Stanley G. Love   +3 more
doaj   +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

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Submillimeter-wavelength Polarimetry of IRC+10216

The Astrophysical Journal
We present SCUBA-2/POL-2 850 μ m polarimetric observations of the circumstellar envelope (CSE) of the carbon-rich asymptotic giant branch (AGB) star IRC+10216.
B-G. Andersson, Janik Karoly, Pierre Bastien, Archana Soam, Simon Coudé, Mehrnoosh Tahani, Michael S. Gordon, Sydney Fox-Middleton   +7 more
doaj   +1 more source

Unraveling the Effect of Tramp Elements on Phase Transformations in Steels by Combining CALPHAD Modeling and Experiments

Advanced Engineering Materials, EarlyView.
This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler, Daniel Marian Ogris, Phillip Haslberger, Matthew Galler, Oleksandr Glushko, Ronald Schnitzer   +5 more
wiley   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Development of a new sample holder and sample holder container for coordinated surface analyses (micro-IR, XPS, FE-SEM, and micro-Raman) and ion irradiation experiments of extraterrestrial materials

Earth, Planets and Space
The Hayabusa2 and OSIRIS-REx missions have successfully returned pristine materials from the carbonaceous asteroids Ryugu and Bennu, respectively. These missions offer a unique opportunity to study space weathering processes, primarily driven by solar ...
Xhonatan Shehaj, Giovanni Pratesi, Stefano Caporali, Brunetto Cortigiani, Stefano Rubino, Carlotta Sciré, Giuseppe Baratta, Marianna Angrisani, Fabrizio Dirri, Alice Scarpellini, Andrea Longobardo, Gianfranco Occhipinti, Tiziano Catelani, Annarita Franza, Ernesto Palomba   +14 more
doaj   +1 more source