Fast synthesis of VC and V2C nanopowders by the mechanochemical combustion method. (July 2015)

• Record Type: Journal Article
• Authors: Hassanzadeh-Tabrizi, S.A.; Davoodi, Danial; Beykzadeh, Ali Asghar; Chami, Akbar
• Is Part Of: International journal of refractory metals & hard materials. Volume 51(2015:Jul.)
• Page Start: 1
• Page End: 5
• Publication Date: 2015-07
• Subjects: Mechanochemical processing -- Vanadium carbide -- Nanostructure materials -- MSR; Heat resistant alloys -- Periodicals; Refractory materials -- Periodicals; Metallography -- Periodicals; Alliages réfractaires -- Périodiques; Matériaux réfractaires -- Périodiques; Métallographie -- Périodiques; Heat resistant alloys; Metallography; Refractory materials; Periodicals; Electronic journals; 669.73
• DOI: 10.1016/j.ijrmhm.2015.02.008
• Languages: English
• ISSNs: 0263-4368

Abstract

Abstract: VC and V2 C nanopowders were synthesized by the mechanochemical combustion method in a high-energy ball mill. The synthesized powders were studied by X-ray diffraction (XRD), differential thermal analysis (DTA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). According to X-ray diffraction the product predominantly consists of VC and V2 C phases after 80 min milling without further heat treatment. The TEM results show that vanadium carbide nanopowders are mainly composed of nearly spherical particles with a mean diameter of about 40 nm. Thermodynamic calculations show the reaction to be a mechanically induced self-sustaining one (MSR). Highlights: VC and V2 C were synthesized via mechanochemical synthesis without further heat treatment. The synthesized powders were studied by XRD, DTA, SEM and TEM. Nanopowders had a mean diameter of about 40 nm.