Results 11 to 20 of about 71,674 (211)
Change of internal friction on aluminium
Production Engineering Archives, 2015 The article is focused on the analysis of changes in the dependence on temperature on the aluminium alloy EN AC 51200 (10,1% Mg, 1,32% Si and 0,43% Mn) by internal friction.
Milan Uhríčik +3 more
doaj +1 more source
Le Journal de Physique Colloques, 1985 Internal friction in Ba has been measured in longitudinal resonance at about 14 kHz in the temperature range between 10 K and 300 K. There exist two peaks around 37 K and 223 K resp. which are tentatively identified as α-peak and γ -peak with an activation energy of Hγ = 0.38 eV and Hα = 0.047 eV.
Hammerschmid, F., Schoeck, G.
openaire +3 more sources
Integrated view of internal friction in unfolded proteins from single-molecule FRET, contact quenching, theory, and simulations [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2017 Andrea Soranno +2 more
exaly +2 more sources
Measurement of Strain-Amplitude Dependent Internal Friction with Torsion Pendulum and Vibration Reed Methods [PDF]
Materials Research, 2018 In the traditional standard of internal friction measurement the torsion pendulum and vibration reed were preferentially recommended where the issue of strain amplitude dependence of internal friction was not concerned.
Qianfeng Fang +2 more
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Annealing and Extended Etching Improve a Torsional Resonator for Thin Film Internal Friction Measurements [PDF]
Materials Research, 2018 We evaluate two methods to improve the background internal friction of the Double Paddle Oscillator (DPO), which has a nominal low temperature value of Q-1 ≈ 2×10-8. We find that annealing the DPO in vacuum at 300°C for 3 hours systematically reduced Q-1
Thomas Metcalf +2 more
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Journal of Materials Research and Technology, 2022 In this study, we investigate the effect of different microstructures generated by severe plastic deformation on the thermal stability of an age-hardenable Al–Mg–Si alloy (AA6082).
Christian Illgen +3 more
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Advances in Civil Engineering, 2022 The direct shear tests of different dry density and moisture content samples at different temperatures of the frozen soil in the Qinghai-Tibet Railway embankment between Tanggula South and Anduo section were carried out to analyze the influence rules of ...
B. Wang +5 more
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Is internal friction friction?
Geophysical Research Letters, 1996 Mogi [1974] proposed a simple model of the incipient rupture surface to explain the Coulomb failure criterion. We show here that this model can plausibly be extended to explain the Mohr failure criterion. In Mogi's model the incipient rupture surface immediately before fracture consists of areas across which material integrity is maintained (intact ...
J. C. Savage +2 more
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Internal friction in enzyme reactions [PDF]
IUBMB Life, 2012 AbstractThe empirical concept of internal friction was introduced 20 years ago. This review summarizes the results of experimental and theoretical studies that help to uncover the nature of internal friction. After the history of the concept, we describe the experimental challenges in measuring and interpreting internal friction based on the viscosity ...
Rauscher, A. +3 more
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Internal friction investigation of phase transformation in nearly stoichiometric LaMnO3+δ [PDF]
, 2005 Rhombohedral LaMnO3+δ powders, prepared by two different soft chemistry routes (co-precipitation and hydrothermal synthesis), are sintered at 1400 °C for 2 h in air. Measurements of internal friction Q−1(T) and shear modulus G(T), at low frequencies from
Calmet, Christophe +7 more
core +1 more source