Zobrazeno 1 - 10
of 32
pro vyhledávání: '"F. M. Mazzolai"'
Publikováno v:
Journal of Physics: Condensed Matter. 4:5155-5166
The macroscopic diffusion coefficient of H and D has been measured using Gorsky relaxation in the temperature range 225-350 K for H (D) atomic ratios n=0.03 and n=0.29, where n=H(D)/(Pd+Pt). The data are analysed in terms of a diffusion model origina
Publikováno v:
Journal of Physics: Condensed Matter. 4:3377-3387
The internal friction (IF) has been measured as a function of the H (D) content in the disordered and ordered Pd3Mn system between 90 and 400 at frequencies in the range 180-5300 Hz. Relaxation processes due to stress-assisted motion of H (D) have be
Publikováno v:
Journal of Physics: Condensed Matter. 4:53-64
Ultrasonic attenuation has been measured as a function of temperature approximately over the range 10-300 K at 5, 10, 15 and 45 MHz in a single crystal of a Pd85Pt15 alloy. The measurements have been carried out for five different propagation modes,
Publikováno v:
Il Nuovo Cimento B Series 11. 33:251-263
The internal friction and the resonant frequency have been measured in annealed and in hydrogen-loaded circular plates of high-purity zirconium between 80 and 800 K at frequencies ranging from 7 to 34 kHz. Three anelastic relaxation effects were foun
Publikováno v:
Journal of the Less Common Metals. 74:137-142
We have carried out systematic studies, over a wide range of both increasing and decreasing hydrogen contents n in the Pd - H ( PdH n ) system, of elastic energy dissipation (internal friction) peaks associated with relaxation processes arising from
Autor:
F. M. Mazzolai
Publikováno v:
Zeitschrift für Physikalische Chemie. 145:199-219
Publikováno v:
Journal of Physics F: Metal Physics. 10:781-799
Anelastic effects in palladium resulting from mechanical deformation and/or hydrogen absorption, have been studied over the range of hydrogen contents, H/Pd=n, between 0.00009 and 0.12, at temperatures between 80 and 300K and for vibration frequencie
Autor:
F M Mazzolai, F A Lewis
Publikováno v:
Journal of Physics F: Metal Physics. 15:1249-1260
Measurements are reported of the elastic energy dissipation coefficient, Q-1, following absorption of hydrogen into a series of palladium-silver alloys, which initially had been in both pre-annealed and mechanically deformed states. The measurements
Publikováno v:
Scripta Metallurgica. 9:617-622