Results 31 to 40 of about 574,212 (298)

Two-dimensional phononic-photonic bandgap optomechanical crystal cavity [PDF]

open access: yes, 2014
We present the fabrication and characterization of an artificial crystal structure formed from a thin-film of silicon which has a full phononic bandgap for microwave X-band phonons and a two-dimensional pseudo-bandgap for near-infrared photons.
Chan, Jasper   +5 more
core   +2 more sources

Mechanical Spectroscopy: Some Applications On Structural Changes And Relaxation Dynamics In Soft Matter

open access: yesArchives of Metallurgy and Materials, 2015
The general trend in soft matter is to study systems of increasing complexity covering a wide range in time and frequency. Mechanical spectroscopy is a powerful tool for understanding the structure and relaxation dynamics of these materials over a large ...
Wu Xuebang, Liu Changsong
doaj   +1 more source

Experimental confirmation of long hyperbolic polariton lifetimes in monoisotopic (10B) hexagonal boron nitride at room temperature

open access: yesAPL Materials, 2021
Hyperbolic phonon polaritons (HPhPs) enable strong confinements, low losses, and intrinsic beam steering capabilities determined by the refractive index anisotropy—providing opportunities from hyperlensing to flat optics and other applications. Here, two
Georges Pavlidis   +7 more
doaj   +1 more source

Critical Assessment Of The Issues In The Application Of Hilbert Transform To Compute The Logarithmic Decrement

open access: yesArchives of Metallurgy and Materials, 2015
The parametric OMI (Optimization in Multiple Intervals), the Yoshida-Magalas (YM) and a novel Hilbert-twin (H-twin) methods are advocated for computing the logarithmic decrement in the field of internal friction and mechanical spectroscopy of solids.
Majewski M., Magalas L.B.
doaj   +1 more source

Atomistic characterization of the dispersed liquid droplet in immiscible Al–Pb alloy

open access: yesJournal of Materials Research and Technology, 2021
This study develops an atomistic simulation-based methodology for studying the dispersed droplet phase in immiscible alloy. The methodology is applied to the immiscible Al–Pb alloy liquid droplet system to study the temperature and curvature effects on ...
Xiang-Ming Ma   +5 more
doaj   +1 more source

Echo Spectroscopy in Multilevel Quantum-Mechanical Rotors [PDF]

open access: yesPhysical Review Letters, 2018
12 pages (including supplementary information)
Rosenberg, Dina   +2 more
openaire   +3 more sources

Andrew Granato: A Memorial Tribute

open access: yesArchives of Metallurgy and Materials, 2016
The following is the text in memory of the late Andy Granato, professor in physics and materials science.
Magalas L.B.
doaj   +1 more source

How do the grains slide in fine-grained zirconia polycrystals at high temperature?

open access: yes, 2007
Degradation of mechanical properties of zirconia polycrystals is hardly discussed in terms of solution-precipitation grain-boundary sliding due to experimental controversies over imaging of intergranular amorphous phases at high and room temperatures ...
Gilbert Fantozzi   +7 more
core   +1 more source

Mechanical Spectroscopy Investigation of Point Defect-Driven Phenomena in a Cr Martensitic Steel

open access: yesMetals, 2018
The paper presents and discusses results of mechanical spectroscopy (MS) tests carried out on a Cr martensitic steel. The study regards the following topics: (i) embrittlement induced by Cr segregation; (ii) interaction of hydrogen with C⁻Cr ...
Alessandra Fava   +2 more
doaj   +1 more source

Supercooled Liquid Dynamics Studied via Shear-Mechanical Spectroscopy

open access: yes, 2008
We report dynamical shear-modulus measurements for five glass-forming liquids (pentaphenyl trimethyl trisiloxane, diethyl phthalate, dibutyl phthalate, 1,2-propanediol, and m-touluidine).
Bartos J.   +20 more
core   +1 more source

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