Facile synthesis of bimetallic carbonitrides, V1-xTix(C,N), by microwave carbothermal reduction-ammonolysis/carburisation (MW-CRAC) methods

West, C. P., Harrison, I., Cussen, E. J. and Gregory, D. H. (2009) Facile synthesis of bimetallic carbonitrides, V1-xTix(C,N), by microwave carbothermal reduction-ammonolysis/carburisation (MW-CRAC) methods. Journal of the European Ceramic Society, 29(11), pp. 2355-2361. (doi:10.1016/j.jeurceramsoc.2009.01.018)

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Abstract

New quaternary carbide nitrides in the V1-xTix(C,N) (0 <= x <= 0.4) system have been synthesised rapidly (0.5-1.5 h) by carbothermal reduction, carburisation and ammonolysis via microwave heating using a custom-modified, multimode cavity microwave reactor. The products were structurally characterised by powder X-ray diffraction (PXD), while scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) were used to examine morphology and composition. The resulting carbonitrides crystallise with the rock salt structure and the cubic lattice parameters vary linearly with increasing titanium concentration (x), hence following Vegard's law. Particle sizes typically range from 250 nm to 2 mu m. .

Item Type:Articles
Keywords:CARBIDES DIFFRACTION ELECTRON-MICROSCOPY ENERGIES ENERGY LATTICE LATTICE PARAMETER Microwave processing NITRIDE Nitrides PARAMETERS POWDERS Powders-solid state reaction REDUCTION SALT Structure SYSTEM TEMPERATURE Transition metals TRANSITION-METAL CARBIDES X-RAY X-RAY-DIFFRACTION
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gregory, Professor Duncan
Authors: West, C. P., Harrison, I., Cussen, E. J., and Gregory, D. H.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of the European Ceramic Society
ISSN:0955-2219

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