Amorphous-amorphous transitions in granular packings. [PDF]
Nat CommunAbstract Polyamorphs are the amorphous counterparts of the distinct crystalline phases that are found in the phase diagram of a substance. For a given system, polyamorphs have different local structures, resulting in distinct macroscopic properties, making them important for fundamental science and applications.
Yuan H, Kob W, Wang Y.
europepmc +2 more sources
Hydrogen adsorption process in nanocrystalline nuclear graphite [PDF]
Nuclear Technology and Radiation Protection, 2022 Kinetics and mechanism of hydrogen adsorption in as-obtained and ground nuclear graphite Wendelstein 7-X are examined. In the first time interval the adsorption process is determined by dissociation of the hydrogen molecule, occurring at the ...
Lukić Vladimir D. +4 more
doaj +1 more source
New catalysts for formic acid fuel cells [PDF]
Serbian Journal of Electrical Engineering, 2022 Thallium adatoms deposited at under-potentials have shown the catalytic effect during the electrooxidation of formic acid on platinum ruthenium alloys.
Spasojević-Savković Milica +3 more
doaj +1 more source
Challenges and opportunities in atomistic simulations of glasses: a review
Comptes Rendus. Géoscience, 2022 Atomistic modeling and simulations have been pivotal in our understanding of the glassy state. Indeed, atomistic modeling offers direct access to the structure and dynamics of atoms in glasses—which is typically hidden from conventional experiments ...
Liu, Han +7 more
doaj +1 more source
Effect of electrodeposition current density on the microstructure and magnetic properties of nickel-cobalt-molybdenum alloy powders [PDF]
Science of Sintering, 2014 Nanostructured nickel-cobalt-molybdenum alloy powders were electrodeposited from an ammonium sulfate bath. The powders mostly consist of an amorphous phase and a very small amount of nanocrystals with an mean size of less than 3 nm.
Pešić O. +4 more
doaj +1 more source
The correlation between structural relaxation process and the change in magnetic permeability of the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy under the thermal influence [PDF]
Kragujevac Journal of Science, 2017 Fast cooling of 106 K/s, according to the melt-spinning method, led to the Fe73.5Cu1Nb3Si15.5B7 amorphous alloy formation. X-ray diffraction analysis method (XRD) showed that the obtained alloy is in amorphous state. The differential scanning calorimetry
Kalezić-Glišović Aleksandra +2 more
doaj +1 more source
The influence of mechanochemical activation and thermal treatment on magnetic properties of the BaTiO3-FexOy powder mixture [PDF]
Science of Sintering, 2015 Powder mixture of 50 mass % of barium titanate (BaTiO3) and 50 mass % of iron (Fe) was prepared by solid-state reaction technique, i.e. ball milled in air for 60 min, 80 min, 100 min, 120 min and 150 min. During mechanochemical activation it was
Ristanović Z. +5 more
doaj +1 more source
Evolution of structural and functional properties of the Fe/BaTiO3 system guided by mechanochemical and thermal treatment [PDF]
Science of Sintering, 2020 Multiferroic systems are attractive to the researches worldwide due to diversity of existing applications, as well as possible novel ones. In order to contribute to understanding of the processes that take place within the structure of such a ...
Stojanović Nemanja +3 more
doaj +1 more source
Amorphous-crystalline Ni-Fe powder mixture: Hydrogenation and annealing effects on microstructure and electrical and magnetic properties [PDF]
Science of Sintering, 2016 The hydrogenation of a crystalline Ni-Fe (80 wt.% Ni, 20 wt.% Fe) powder mixture leads to the formation of a mixture of Face Centered Cubic (FCC)-Ni and FCC-Fe phase nanocrystals embedded in an amorphous matrix.
Milinčić Radovan +4 more
doaj +1 more source
Effect of deposition current density and annealing temperature on the microstructure and magnetic properties of nanostructured Ni-Fe-W-Cu alloys [PDF]
Science of Sintering, 2019 Ni-Fe-W-Cu alloy powders were obtained by electrodeposition from an ammonium citrate bath at current densities ranging between 70 and 600 mA cm-2. As the deposition current density increased, the contents of Fe and W in the alloy increased, and ...
Spasojević Milica +5 more
doaj +1 more source