Article In: orcid, scopus, cienciavitae
Photochemically promoted formation of higher carbide of molybdenum through reaction between metallic molybdenum powders and graphite powders in a solar furnace
International Journal of Refractory Metals and Hard Materials
— 1999 — Elsevier
Key information
Authors:
Published in
November 1, 1999
Abstract
At temperatures between 1190°C and 1655°C, stable phase of Mo–C system is a hexagonal sub-carbide β-Mo2C and, at temperature lower than 1190°C, an orthorhombic sub-carbide α-Mo2C. Hypo-stoichiometric mono-carbide phase MoC1−x (0<x<0.5) exists only at temperatures higher than 1655°C in reported equilibrium Mo–C phase diagram; a complex hexagonal α-MoC1−x up to 1960°C and a face centred cubic (fcc) β-MoC1−x between 1960°C and 2580°C (melting temperature). By reaction between Mo and graphite in a solar furnace, hexagonal mono-carbide α-MoC1−x formed in 30 min at 1600±20°C. This evidence seems to indicate occurrence of some photochemical reaction promotion towards formation of higher carbide of Mo at comparatively low temperature by the heating with solar beam.
Publication details
Authors in the community:
Luís Manuel Guerra da Silva Rosa
ist11630
Publication version
AM - Accepted manuscript
Publisher
Elsevier
Link to the publisher's version
https://www.sciencedirect.com/science/article/pii/S0263436899000207?via%3Dihub
Title of the publication container
International Journal of Refractory Metals and Hard Materials
First page or article number
351
Last page
356
Volume
17
Issue
5
ISSN
0263-4368
Fields of Science and Technology (FOS)
materials-engineering - Materials engineering
Keywords
- Molybdenum
- Graphite
- Amorphous carbon
- Molybdenum carbide
- Photo-chemical reaction
- Solar furnace
Publication language (ISO code)
eng - English
Rights type:
Only metadata available
Financing entity
European Commission
Identifier for the funding entity: undefined