Zobrazeno 1 - 10
of 40
pro vyhledávání: '"T. S. Hutchison"'
Publikováno v:
The Encyclopedia of Physics ISBN: 9780442005221
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81ec0cc4a836a6f18b9c4394d8596dac
https://doi.org/10.1007/978-1-4615-6902-2_20
https://doi.org/10.1007/978-1-4615-6902-2_20
Publikováno v:
Il Nuovo Cimento B Series 11. 33:131-141
The jump in the flow stress which occurs when certain metals are changed from the superconductive to the normal state while being extended at a constant strain rate is explained as a result of the thermal-conductivity change. A steady-state model is
Autor:
S. L. McBride, T. S. Hutchison
Publikováno v:
Journal of Low Temperature Physics. 22:121-139
The observed difference in plasticity in the normal and superconducting states in metals and alloys has been attributed by most authors to an electron-dislocation interaction. Granato has associated this interaction with a dislocation damping propert
Publikováno v:
Journal of Low Temperature Physics. 67:165-184
The mechanical behavior of Nb-46.5% wt Ti in the form of single fibers of 53 µm diameter, chemically extracted from a superconducting composite, has been studied at 4.2 K and room temperature. It is established that the fiber itself is in both radia
Autor:
S. L. McBride, T. S. Hutchison
Publikováno v:
Canadian Journal of Physics. 54:1824-1830
The excitation and spectral calibration of acoustic emission systems using a helium gas jet is shown to produce system independent acoustic emission spectral information. The calibration source makes no mechanical contact with the specimen or structu
Publikováno v:
Journal of Low Temperature Physics. 67:155-164
Experimental results are presented for the stress required to cause quenching during successive runs when bare fibers of Nb-Ti are carrying subcritical currents with no cross field. The data fall into two distinct regimes attributed to regions of mag
Autor:
S. L. McBride, T. S. Hutchison
Publikováno v:
Canadian Journal of Physics. 56:504-507
A helium gas jet produces a convenient and reproducible localized (point source) displacement spectrum over the frequency range 0.2–1.0 MHz. The calibration spectrum has a maximum value of 10 Å at 200 kHz and decreases approximately logarithmicall
Publikováno v:
Journal of Low Temperature Physics. 57:563-572
Tensile stress experiments were made on single Ti 39.5 at % Nb fibers, 18.3 µm in diameter, and fiber bundles chemically extracted from a commercial superconducting composite. As the temperature decreases, the fracture stress increases, as does the
Publikováno v:
Canadian Journal of Physics. 48:2955-2970
A model in which an extended dislocation jumps about a pinning agent (discussed previously by Blair et al.) gives rise to damping and modulus defect terms. These are calculated for dislocation loops of constant length and for an exponential distribut
Autor:
T. S. Hutchison, D. H. Rogers
Publikováno v:
Journal of Applied Physics. 33:792-799
Measurements of 40‐kc acoustic damping in well‐annealed polycrystalline, 99.996% pure aluminum at temperatures between 4.2° and 273°K are compared with theories of dislocation damping by Granato and Lucke and by Rogers. Two dislocation systems