Results 21 to 30 of about 17,081 (219)
Crystals, 2022 The symplectic solution system of decagonal quasicrystal elastic mechanics is considered. Hamiltonian dual equations together with the boundary conditions are investigated by utilizing the principle of minimum potential energy.
Guangfang Li, Lianhe Li
doaj +1 more source
Formation of a single quasicrystal upon collision of multiple grains
Nature Communications, 2021 Quasicrystals exhibit long-range order without periodicity. The authors report an approach for quasicrystal fabrication and show through in situ imaging and corresponding simulations the formation of a single decagonal quasicrystal arising from ...
Insung Han +7 more
doaj +1 more source
Dodecagonal quasicrystal in Mn-based quaternary alloys containing Cr, Ni and Si [PDF]
, 2015 A dodecagonal quasicrystal showing 12-fold symmetry forms in Mn-rich quaternary alloys containing 5.5 or 7.5 at.% Cr, 5.0 at.% Ni and 17.5 at.% Si.
Ishimasa, Tsutomu, Iwami, Shuhei
core +2 more sources
Crystals, 2023 For the manufacturing and optimization of quasicrystal structures, Rayleigh waves propagating in the functionally graded one-dimensional hexagonal quasicrystal half-space are investigated.
Bo Zhang +4 more
doaj +1 more source
Royal Society Open Science, 2021 Low-expansion alloys are of great importance and can be used for the development of new aerospace materials. Herein, we report diverse rare earth quasicrystal alloys fabricated by the vacuum suction casting process. The effects of the addition of cerium (
Juan Wang +9 more
doaj +1 more source
Image Sampling with Quasicrystals [PDF]
, 2009 We investigate the use of quasicrystals in image sampling. Quasicrystals produce space-filling, non-periodic point sets that are uniformly discrete and relatively dense, thereby ensuring the sample sites are evenly spread out throughout the sampled image.
Dodgson, Neil A. +3 more
core +4 more sources
Analysis alloy quasicrystalline Al62,2 Cu25,3 Fe12,5 for steam reforming of methanol
Semina: Ciências Exatas e Tecnológicas, 2015 This study shows a good performance of quasicrystal Al62,2Cu25,3Fe12,5 as catalyst in catalytic reactions. This metal catalyst, without being leached with acid or base, with dry stoichiometric composition, Al62,2Cu25,3Fe12,5 is revealed among the ...
Lourdes Cristina Lucena Agostinho Jamshidi +3 more
doaj +1 more source
Fracture of complex metallic alloys: An atomistic study of model systems [PDF]
, 2006 Molecular dynamics simulations of crack propagation are performed for two extreme cases of complex metallic alloys (CMAs): In a model quasicrystal the structure is determined by clusters of atoms, whereas the model C15 Laves phase is a simple periodic ...
Abraham FF +16 more
core +4 more sources
Metals, 2022 In this investigation, strips of an experimental Al-Mn-Cu-Be alloy were manufactured by high-speed single-roll and twin-roll casting to stimulate the formation of a quasicrystalline phase during solidification.
Franc Zupanič +3 more
doaj +1 more source
Journal of Research of the National Institute of Standards and Technology, 2001 The discretely diffracting aperiodic crystals termed quasicrystals, discovered at NBS in the early 1980s, have led to much interdisciplinary activity involving mainly materials science, physics, mathematics, and crystallography. It led to a new understanding of how atoms can arrange themselves, the role of periodicity in nature, and has created a new ...
openaire +3 more sources