Zobrazeno 1 - 10
of 35
pro vyhledávání: '"M. G. Nicholas"'
Autor:
M. G. Nicholas, J. C. Ambrose
Publikováno v:
Materials Science and Technology. 12:72-80
Hot stage optical microscopy has been used in detailed studies of the flow of drops of Ni–11P braze over iron substrates containing 2–20 wt-%Cr. Wetting was good, but not complete at the experimental temperatures of about 1000°C. Spreading of th
Autor:
M. G. Nicholas, P. J. Fernback
Publikováno v:
Journal of Materials Science. 26:4008-4021
Tensile failure of high-purity (99.99%) nickel varied systematically with the chemistry of alkali metal environments. Failure was by microvoid coalescence when stressed to destruction in argon, caesium, rubidium and potassium at 250 °C. The ultimate
Publikováno v:
Journal of Materials Science. 26:1311-1315
The presence of titanium at nitride ceramic-braze interfaces can promote both wetting and bonding. Previously we have added titanium to brazes and examined the effects of segregation to the interfaces but in this study, the ceramic surfaces were prec
Autor:
R. M. Crispin, M. G. Nicholas
Publikováno v:
Proceedings of the International Forum on Structural Ceramics Joining: Ceramic Engineering and Science Proceedings
Synthese bibliographique. On examine le mouillage des surfaces de ceramiques d'oxydes (alumine) et de ceramiques sans oxydes par des alliages metalliques contenant du titane, ainsi que la resistance mecanique des interfaces ceramique-metal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49c95553b90c789bc3e850bceb6f6a16
https://doi.org/10.1002/9780470312568.ch9
https://doi.org/10.1002/9780470312568.ch9
Autor:
M. G. Nicholas, R. M. Crispin
Publikováno v:
Proceedings of the International Forum on Structural Ceramics Joining: Ceramic Engineering and Science Proceedings
Etude du soudage alumine-cuivre par interdiffusion dans les conditions de pressage a haute temperature. On examine les effets de la temperature, de la duree de pressage, de la pression, de l'environnement, de la vitesse de refroidissement et de la re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfc78f4ba2bd2288412024b9a6c6ae7c
https://doi.org/10.1002/9780470312568.ch7
https://doi.org/10.1002/9780470312568.ch7
Publikováno v:
Journal of Materials Science. 25:5248-5256
The effect of molten tellurium and tellurium/caesium mixtures on the mechanical properties of Type 316 steel have been assessed at temperatures between 460 and 800 ° C using slow and fast strain rates. Tellurium embrittled the steel at temperatures
Publikováno v:
Materials Science and Technology. 6:1021-1031
The wetting behaviour of Ni–P braze alloys has been examined. In addition to detailed examinations of samples carried out after the wetting tests, real time observations of the wetting process have been made using a heating stage fitted to a light
Autor:
M. Roo, M. G. Nicholas
Publikováno v:
Journal of Materials Science. 25:3501-3507
Experiments were conducted to assess the relevance to filtration of the Poiseuille analysis of liquid flow in straight cylindrical pipes. Trials using glass filters through which water, a citric acid solution and mercury flowed showed that the analys
Publikováno v:
Journal of Materials Science. 25:2679-2689
Several series of experiments have been conducted to gain information about the wettability of AlN, BN, Si3N4 and two sialon ceramics by potential braze materials. It was possible to achieve wetting of all five ceramics using aluminium, copper-titani
Publikováno v:
Journal of Materials Science Letters. 13:1497-1499
The ability of Ni brazes to join Si3N4 is degraded by dissociation of the ceramic at the bonding temperatures and ingress of Si to form brittle silicides. Attempts to mitigate this problem [1-3] have focused on brazes containing Si, which may not be