Low-temperature synthesis of TiC, Mo2C, and W2C from modulated elemental reactants

Citation
C. Johnson et al., Low-temperature synthesis of TiC, Mo2C, and W2C from modulated elemental reactants, CHEM MATER, 13(11), 2001, pp. 3876-3881
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
CHEMISTRY OF MATERIALS
ISSN journal
0897-4756 → ACNP
Volume
13
Issue
11
Year of publication
2001
Pages
3876 - 3881
Database
ISI
SICI code
0897-4756(200111)13:11<3876:LSOTMA>2.0.ZU;2-8
Abstract
The evolution of modulated elemental reactants containing alternating layer s of carbon and Ti, W, or Mo was studied using differential scanning calori metry and X-ray diffraction. TiC crystallized at 350 degreesC from a modula ted reactant with a composition near 1:1 with respect to Ti and C. Mo2C and W2C nucleated at 500 and 600 degreesC, respectively, from modulated reacta nts with compositions close to their stoichiometry. No exotherms were obser ved in samples that had compositions that were not close to the stoichiomet ries of TiC, Mo2C, or W2C.