Encontrados 2 documentos, a visualizar página 1 de 1
Carbide phases synthesised from C/Mo powder compacts at specified sub-stoichiom...
Granier, Bernard; Shohoji, Nobumitsu; Oliveira, F. A. Costa; Magalhães, Teresa; Fernandes, Jorge Cruz; Rosa, Luís GuerraThere are a number of distinguishable carbide phases in the binary Mo-C system depending on C/Mo ratio as well as on temperature. In a preceding work published in this journal, carbide formation performance for graphite/molybdenum powder mixtures at specified levels of substoichiometric C/Mo atom ratio (C/Mo = 1/1, 3/4, 2/3 and 1/2) by exposure to concentrated solar radiation in a solar furnace at PROMESCNRS in...
Nano-meter size WC whiskers grown over a compacted pellet of praphite: tungsten...
Dias, Susana; Oliveira, F. A. Costa; Granier, Bernard; Badie, Jean Marie; Fernandes, Jorge Cruz; Rosa, Luís Guerra; Shohoji, NobumitsuIn equilibrium binary W-C system, mono-carbide WC is acknowledged as the stable phase under presence of excess free carbon up to temperature 2700 C whereas sub-carbideW2C would form between 1250 C and 2700 C under the carbon-deficiency condition. In unique setup of solar furnace at PROMES-CNRS in Odeillo (France), temperature of specimen is raised from the ambient temperature to target temperature up to 2000 C ...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||