Zobrazeno 1 - 10
of 18
pro vyhledávání: '"D. H. Bowen"'
Autor:
P. Sansonetti, M. Leguime, D. Engrand, P. Ferdinand, J. Plantey, D. H. Bowen, R. Davidson, S. S. Roberts, M. Crowther, M. Pleydell, B. Culshaw, C. Michie, M. Martinelli, P. Escobar, B. Fornari
Publikováno v:
SPIE Proceedings.
Publikováno v:
Journal of Materials Science. 7:663-675
Publikováno v:
Journal of Physics C: Solid State Physics. 4:1496-1504
When MgO crystals are subjected to reactor irradiation after annealing in hydrogen, large differences in the colour centre concentration are observed compared with unannealed crystals. These are believed to be due to vacancies diffusing to large lent
Publikováno v:
Journal of Materials Science. 5:972-977
Observations of electron damage occurring in LiF single crystals within an electron microscope are recorded. A number of irradiation-induced defects, similar to those reported by other workers were observed, but a new feature is the identification, b
Autor:
D. H. Bowen, G. O. Jones
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 254:522-536
In a development of the clamp technique of Chester & Jones (1953), virtually hydrostatic pressures of up to 10000 atm have been attained in soft metal specimens at low temperatures. Measurements of the variation with pressure of the superconducting c
Autor:
B Henderson, D H Bowen
Publikováno v:
Journal of Physics C: Solid State Physics. 4:1487-1495
The kinetics of saturation of F+ centre production have been studied in MgO after reactor irradiation. Although both vacancy and interstitial clusters are formed at high neutron dose, saturation does not result from clustering but is more probably ca
Publikováno v:
Journal of Materials Science. 7:1454-1464
The mechanical properties of carbon fibre reinforced Pyrex glass are discussed in terms of the volume fraction of fibre, the orientation of the fibres, fibre damage during fabrication, matrix porosity, matrix critical strain, interface properties and
Autor:
D. H. Bowen, C. S. Morgan
Publikováno v:
Philosophical Magazine. 16:165-180
In magnesium oxide, irradiated with neutrons at 150°c, 600°C and 1000°c to doses greater than 1020 nvt> 1 Mev, rectilinear bubbles have been observed by transmission electron microscopy after annealing at temperatures above 1500°c. In specimens i
Publikováno v:
Journal of Materials Science. 7:676-681
A description is given of the microstructure and mechanical properties of alumina, sodalime glass, borosilicate glass and a lithia alumino-silicate glass-ceramic containing continuous, high modulus carbon fibres. Strengths up to 680 MNm−2 were obta
Publikováno v:
Phytochemistry. 12:2935-2941
Following extensive purification of an extract from 5000 light-grown Phaseolus coccineus seedlings by procedures including countercurrent distribution, Sephadex G10, polyvinylpyrrolidone, charcoal-celite and silicic acid partition column chromatograp