Zobrazeno 1 - 10
of 28
pro vyhledávání: '"P. G. Bordoni"'
Autor:
Moheb H. Youssef, P. G. Bordoni
Publikováno v:
Philosophical Magazine A. 68:1315-1329
The mechanical energy dissipation Q −1 and the resonance frequency f have been measured in specimens of polycrystalline hexagonal cobalt and cadmium, in the temperature range 290K to 90 K during heating and cooling. The specimens were set into flex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3778ebe83c7e43c2d4ba87b415a33956
https://doi.org/10.1080/01418619308222933
https://doi.org/10.1080/01418619308222933
Autor:
P. G. Bordoni, Moheb H. Youssef
Publikováno v:
Philosophical Magazine A. 67:883-896
Recently, it has been found by the present authors that microplastic deformation can be produced in zinc polycrystalline plates if the temperature of the specimen is changed by less than 1 K. This deformation showed itself as a sharp drop in the reso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e5cd2f0aa35e6171c4dbf564aa2f22d
https://doi.org/10.1080/01418619308213965
https://doi.org/10.1080/01418619308213965
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72c6a16f8d3fe61495c1afc8fa91bdc6
https://doi.org/10.1016/0022-5088(80)90083-1
https://doi.org/10.1016/0022-5088(80)90083-1
Autor:
G. Maschio, P. G. Bordoni
Publikováno v:
Il Nuovo Cimento D. 4:312-326
The approximate representation obtained in a previous paper for the frequency dependence of the energy dissipation taking place in a vibrating solid with a Gaussian relaxation spectrum has been extended, for the same spectrum, to the frequency depend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::750138d4680ecaafc34c9ec2dd57453e
https://doi.org/10.1007/bf02453348
https://doi.org/10.1007/bf02453348
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5080984465c0ffee8bc6b0f14e3eb79d
https://doi.org/10.1088/0305-4608/10/5/009
https://doi.org/10.1088/0305-4608/10/5/009
Autor:
P. G. Bordoni, G. Maschio
Publikováno v:
Il Nuovo Cimento D. 1:208-214
The tabulation of the normalized coefficient (Q−1)G which characterizes the dissipation of elastic energy due to a relaxation effect with a Gaussian time spectrum has been extended to a range of values of the independent variablex and of the distri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::157547d58906334850c4f67ab1a1a9e9
https://doi.org/10.1007/bf02450079
https://doi.org/10.1007/bf02450079
Autor:
P. G. Bordoni
Publikováno v:
Il Nuovo Cimento D. 8:123-147
The influence of hydrogen, introduced by cathodization, on the dissipation of elastic energy in bars of plasticaly deformed palladium, vibrating flexurally, has been investigated in the temperature interval (80÷300) K, for frequencies in the kilocyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dea6af6771227c50d10b9df18423aac8
https://doi.org/10.1007/bf02450471
https://doi.org/10.1007/bf02450471
Autor:
G. Fusco, P. G. Bordoni
Publikováno v:
Il Nuovo Cimento D. 4:55-67
In the cathodization of palladium, when the final equilibrium concentrationnf of hydrogen does not exceed the maximum valuenαmax taken in the α-phase, a temporary formation of β-phase may take place, provided the current density is larger than a l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a5f999f6b07216fce5a6cd007d05df
https://doi.org/10.1007/bf02451871
https://doi.org/10.1007/bf02451871
Autor:
G. Maschio, P. G. Bordoni
Publikováno v:
Il Nuovo Cimento D. 4:263-279
Iterative methods are developed in order to extract from measurements of energy dissipation the information they contain concerning the spectrum of characteristic times of anelastic relaxation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa842aa1dd969fe6a4da2c29111107c9
https://doi.org/10.1007/bf02453345
https://doi.org/10.1007/bf02453345
Publikováno v:
Journal of Physics F: Metal Physics. 11:337-352
Elastic energy dissipation (internal friction) peaks, arising from both stress-induced, bulk lattice rearrangements of hydrogen interstitials (H(1) peak) and hydrogen dislocation interactions (H(2) peak), have been investigated over a wide range of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5de1a33d6a2cc6a956054eb058e9485
https://doi.org/10.1088/0305-4608/11/2/007
https://doi.org/10.1088/0305-4608/11/2/007