Preparation and Characterization of Some Transition Metal Compounds for Analytical and Industrial Applications

Abstract

Carbides, a very unique field of research, becoming very attractive and promising candidates in modern scientific and technological application. Among these, chromium and vanadium carbides exhibit extremely good strength, hardness, corrosion resistance, surface characteristic, etc. These properties are further enhanced by synthesizing chromium carbide and vanadium carbide in nano scale. Nano grained materials exhibit superior properties than conventional one. The present work is an attempt to synthesize carbides nanoparticles by thermo-chemical reaction route where metal oxides are reduced to nano-carbides at temperature 800 °C for 20 h. The product powder was investigated using field emission scanning electron microscope/ energy dispersive X-ray and X-ray diffraction, transmission electron microscope. Vanadium and chromium carbides are successfully synthesized and investigated as electrode materials for electrochemical capacitors. Chromium carbide coatings were grown on AISI O2, via pack cementation method. Vanadium carbide coatings were grown on AISI D3 cold work tool steel via salt bath method. Keywords: Transition Metal carbides TMC, Nanopowders, Coatings, Corrosion, Hardness, TEM, SEM.