Results 31 to 40 of about 7,317,461 (297)

Hybrid, Multiscale Numerical Simulations of the Equal Channel Angular Pressing (ECAP) using the Crystal Plasticity Theory [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The FEM simulations of the ECAP including real conditions of the process – the friction between the metal extruded and the die walls, as well as, the channels rounding, were done here in two scales – macro- and micro-.
Marta Wójcik
doaj   +1 more source

In situ inward epitaxial growth of bulk macroporous single crystals

open access: yesNature Communications, 2017
Porous single crystals are desirable for optoelectronic applications, but their fabrication remains challenging. Here the authors produce centimetre-sized macroporous GaN single crystals with electron mobility comparable to that of bulk crystals via in ...
Chenlong Chen   +3 more
doaj   +1 more source

Thermodynamic Modeling of Formation Enthalpies of Amorphous and Crystalline Phases in Zr, Nd, and Ce-Substituted Fe-Si Systems

open access: yesApplied Sciences, 2023
The alloys that crystallize in a tetragonal ThMn12-type (space group I4/mmm) structure and are based on Fe and rare earth elements are believed to have a potential to plug the performance gap between ferrite and Nd-based magnets.
Mieszko Kołodziej, Zbigniew Śniadecki
doaj   +1 more source

Direct correlation between modulus and the crystalline structure in isotactic polypropylene

open access: yeseXPRESS Polymer Letters, 2015
Mechanical properties and crystalline structure of isotactic polypropylene (iPP) types were studied using polymers, which were polymerized differently in order to obtain diverse molecular architectures.
A. Menyhard   +8 more
doaj   +1 more source

A Database for Crystalline Organic Conductors and Superconductors [PDF]

open access: yes, 2022
We present a prototype database for quasi two-dimensional crystalline organic conductors and superconductors based on molecules related to bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF, ET).
Kevin Feeny   +9 more
core   +1 more source

Surface coloring by laser irradiation of solid substrates

open access: yesAPL Photonics, 2019
Laser marking has become a versatile method for industrial product identification because of its applicability to almost all kinds of solid materials in a simple and single-step process.
Huagang Liu, Wenxiong Lin, Minghui Hong
doaj   +1 more source

Preservation of a Dust Crystal as it Falls in an Afterglow Plasma

open access: yesFrontiers in Physics, 2022
In an experiment, the power that sustains a plasma was extinguished, so that microspheres, which had been levitated, fell downward toward a lower electrode. At the beginning of their fall, the microspheres were self-organized with a crystalline structure.
Neeraj Chaubey, J. Goree
doaj   +1 more source

Large Area Free-Standing Single Crystalline Films of p-Quinquephenyl: Growth, Structure and Photoluminescence Properties

open access: yes, 2020
Studies of the growth of large-area free-standing single-crystalline films of p-quinquephenyl are presented. High-quality crystals were grown by slow cooling of a hot chlorobenzene solution.
Nataliya Sorokina   +8 more
core   +1 more source

Nano Crystalline Starch And Its Alternatif Implementation [PDF]

open access: yes, 2012
Starch, normally consisting of amylose and amylopectin, is a partially crystalline polymeric substance. Native starch granules may give A-, B-, C-, and V-type X-ray diffraction patterns.
Heny , Herawati
core   +1 more source

A possible structure for α‐crystallin [PDF]

open access: yesFEBS Letters, 1987
α‐Crystallin, the major protein of the mammalian eye lens, is found in vivo as a multimeric aggregate composed of two closely related subunits whose molar ratio is widely variable from species to species. Attempts to determine the arrangement of the subunits within the aggregate, or even to determine the size of the aggregate and the number of subunits
Augusteyn, Robert C., Koretz, Jane F.
openaire   +1 more source

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