Results 31 to 40 of about 1,438,136 (241)

Thermal processes under explosive loading of amorphous alloy powders [PDF]

open access: yesMATEC Web of Conferences, 2021
The article deals with the state of production of bulk amorphous and nanocrystalline materials. Conditions for the preservation of the “X-ray” amorphous state in compact materials obtained by explosive pressing of amorphous alloy powders are formulated ...
Voloshin Yury   +2 more
doaj   +1 more source

A radial analogue of Poisson's summation formula with applications to powder diffraction and pinwheel patterns [PDF]

open access: yes, 2006
Diffraction images with continuous rotation symmetry arise from amorphous systems, but also from regular crystals when investigated by powder diffraction.
Baake   +20 more
core   +4 more sources

Cooling Characteristic and Microstructure of Ni-Si-B-Ag Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The aim of this work was to investigate the possibility of obtaining an amorphous/crystalline composite starting from Ni-Si- B-based powder grade 1559-40 and silver powder. The alloy was produced using arc melting of 95% wt. Ni-Si-B-based powder (1559-40)
M. Wojciechowska, K. Ziewiec, D. Mucha
doaj   +1 more source

Thermal behavior of polytriazole films: a thermal analysis study [PDF]

open access: yes, 1989
The thermal behavior of poly(1,3-phenyl-1,4-phenyl)-4-phenyl-1,2,4-triazole has been investigated using different scanning calorimetry (DSC) and thermogravimetry (TG).
Gebben, B.   +2 more
core   +2 more sources

Multiscale understanding of tricalcium silicate hydration reactions [PDF]

open access: yes, 2017
Tricalcium silicate, the main constituent of Portland cement, hydrates to produce crystalline calcium hydroxide and calcium-silicate-hydrates (C-S-H) nanocrystalline gel. This hydration reaction is poorly understood at the nanoscale.
Cuesta-García, Ana María   +8 more
core   +4 more sources

Properties of gas-atomized Cu-Ti-based metallic glass powders for additive manufacturing

open access: yesMaterials & Design, 2022
Laser powder bed fusion (PBF-LB/M) of bulk metallic glasses permits large and complex components to solidify to an amorphous state, thus expanding the processing possibilities of this material class.
Erika Soares Barreto   +8 more
doaj   +1 more source

Utilization of Crystalline and Amorphous Silica as a Sintering Inhibitor in Iron/Iron Oxide Thermochemical Water Splitting Cycle

open access: yesFrontiers in Chemical Engineering, 2021
Hydrogen as a chemical fuel and energy carrier can provide the path to solar energy storage to overcome the intermittency issues. Hydrogen can be produced by various methods; among them is the thermochemical water splitting of metal/metal oxide reduction
Fotouh Al-Ragom
doaj   +1 more source

Ultrafast reductive dechlorination of carbon tetrachloride by amorphous Fe78Si9B13 alloy

open access: yesResults in Physics, 2019
Amorphous Fe78Si9B13 ribbons and zero-valent iron (ZVI) powder were used to remove carbon tetrachloride (CTC) in the neutral oxic environment. The amorphous Fe78Si9B13 ribbons showed significantly better dechlorination performance than the ZVI powder ...
Changqin Zhang   +3 more
doaj   +1 more source

Synthesis and characterization of spherical amorphous alumo-silicate nanoparticles using RF thermal plasma method [PDF]

open access: yes, 2013
The RF thermal plasma synthesis route was used for the preparation of alumo-silicate spherical particles. Homogeneous solid mixtures of raw materials (Al2O3, SiO2 and KOH) were used as precursors.
Jankeviciutea, Audrone   +4 more
core   +1 more source

Dynamic Covalent Synthesis of Crystalline Porous Graphitic Frameworks [PDF]

open access: yes, 2020
Porous graphitic framework (PGF) is a two-dimensional (2D) material that has emerging energy applications. An archetype contains stacked 2D layers, the structure of which features a fully annulated aromatic skeleton with embedded heteroatoms and periodic
Cai, S   +18 more
core   +2 more sources

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