Results 51 to 60 of about 4,958 (198)
Design and characterisation of photonic quasicrystals from microwave to optical regime [PDF]
, 2010 Photonic band-gap materials are artificially periodic engineered materials with which we can control and manipulate the electromagnetic radiation. The period photonic crystals are well known and have been studied for the last two decades.
Thankamani, Priya Rose
core
Quasicrystals - Discovery, Structure and Properties [PDF]
Kemija u Industriji, 2012 Quasicrystals are solid materials the structures of which can have crystallographically forbidden symmetries, e.g. of the fifth order, and do not have the translational invariance charactistic for classical crystals.
Stilinović, V., Brückler, F. M.
doaj
Journal of Materials Research and Technology, 2019 Icosahedral Al65Cu23Fe12 and decagonal Al73Cu11Cr16 quasicrystalline powders were synthesized by the mechanical alloying and subsequent annealing. Morphology evolution at mechanical alloying of Al-based powders was found to be determined by competition ...
Victor V. Tcherdyntsev +4 more
doaj +1 more source
A parsimonious structure model for the icosahedral quasicrystal Cd5.7Yb
Acta Crystallographica Section A, EarlyView.The paper presents a parsimonious structure model for the icosahedral Cd5.7Yb quasicrystal. It employs only spherical and elliptical occupation domains, which significantly decreases the number of parameters and the required calculation effort. Still, the model describes the characteristic structural features with considerable accuracy.A compact ...
M. Feuerbacher
wiley +1 more source
Structure models of quasicrystal approximants deduced from the strong reflections approach in quasicrystals: types, systems and techniques [PDF]
, 2010 Quasicrystals are metallic alloys that exhibit atomic scale order, but not periodic order. Atomic scale properties of these materials are different from single crystalline material, for example, extraordinary mechanical properties, electrical and thermal
Hovmöller, Sven, +2 more
core
Meteoritics &Planetary Science, EarlyView.Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì +6 more
wiley +1 more source
Cation Distribution in Li2CaSiO4:Gd, Pr, Na Uncovered Through Anomalous Diffraction
European Journal of Inorganic Chemistry, Volume 29, Issue 20, 17 July 2026.Li2CaSiO4 co‐doped with Gd3+ and Pr3+ shows strong blue‐to‐UV‐B up‐conversion. Herein, we explore the doping element distribution in order to discern the reason for the strongly supportive co‐doping effect using high‐resolution Rietveld refinement and multiple‐edge anomalous dispersion measurements.
Christoph Rick +4 more
wiley +1 more source
Single-Beam 1-D, 2-D And 3-D Patterning Of Liquid Crystal-Polymer Composites With Spatial Light Modulation Based On Computer-Generated Holography [PDF]
, 2008 The technique of Spatial Light Modulation based on Computer-generated Holography has been successfully exploited to realize patterned samples made by a mixture of liquid crystal and polymeric composites.
Zito, Gianluigi
core
The Curled Up Dimension in Quasicrystals [PDF]
, 2021 Most quasicrystals can be generated by the cut-and-project method from higher dimensional parent lattices. In doing so they lose the periodic order their parent lattice possess, replaced with aperiodic order, due to the irrationality of the projection ...
Klee Irwin +5 more
core +1 more source
Y4Ni0.71Ag1.29: Expanding the Boundaries of the Gd4RhIn Structure Type
Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 11, 16 July 2026.A first representative of the Gd4RhIn type with three transition metals. The new ternary compound Y4Ni0.71Ag1.29 has been prepared by arc melting the elements under inert atmosphere. Subsequent annealing at 800°C for 2 weeks yielded crystals of sufficient quality for structure determination by single‐crystal X‐ray diffraction.
Chris Celania +2 more
wiley +1 more source