Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Catalytic graphitisation of amorphous carbon during solar carbide synthesis of VIa group metals (Cr, Mo and W)
Autore:
Shohoji, N; Amaral, PM; Fernandes, JC; Rosa, LG; Martinez, D; Rodriguez, J;
Indirizzi:
Inst Nacl Engn & Tecnol Ind, Dept Mat & Tecnol Prod, P-1649038 Lisbon, Portugal Inst Nacl Engn & Tecnol Ind Lisbon Portugal P-1649038 8 Lisbon, Portugal Inst Super Tecn, Dept Mat Engn, P-1049001 Lisbon, Portugal Inst Super Tecn Lisbon Portugal P-1049001 gn, P-1049001 Lisbon, Portugal Plataforma Solar Almeria, Ctr Europeo Ensayos Energia Solar, Ctr Invest Energet Medioambientales & Technol, Tabernas, Spain Plataforma Solar AlmeriaTabernas Spain ales & Technol, Tabernas, Spain
Titolo Testata:
MATERIALS TRANSACTIONS JIM
fascicolo: 1, volume: 41, anno: 2000,
pagine: 246 - 249
SICI:
0916-1821(200001)41:1<246:CGOACD>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
BULK TUNGSTEN CARBIDES; GRAPHITIZATION; OXYGEN; GAS; N2;
Keywords:
chromium; molybdenum; tungsten; carbide; amorphous carbon; graphitisation; catalysis; photochemical reaction; solar furnace;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Shohoji, N Inst Nacl Engn & Tecnol Ind, Dept Mat & Tecnol Prod, P-1649038 Lisbon, Portugal Inst Nacl Engn & Tecnol Ind Lisbon Portugal P-1649038 ortugal
Citazione:
N. Shohoji et al., "Catalytic graphitisation of amorphous carbon during solar carbide synthesis of VIa group metals (Cr, Mo and W)", MATER T JIM, 41(1), 2000, pp. 246-249

Abstract

We observed earlier the evidence indicative of promoted graphitisation of amorphous carbon (aC) during a solar synthesis of tungsten carbide (WC) from mixed powders of W and aC whereas graphitisation of aC did not proceed during WC formation under a comparable temperature condition in a traditionallaboratory electric resistance furnace and thus the observed graphitisation promotion for aC was concluded to be with photochemical-assisted nature. Graphitisation promotion was not observed at all in the synthesis of molybdenum carbide from mixed powders of Mo and aC undertaken in neither solar furnace nor traditional laboratory furnace. Being intrigued by these observations, we decided to undertake the similar experiments with another VIa group metal, Cr. The observed aC graphitisation behaviour with Cr was differentfrom that with Mo and that with W. With Cr, aC graphitisation progressed in both solar furnace and traditional laboratory furnace.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 10:17:12