Study on High-Temperature Oxidation Characteristics of Pure Vanadium

Lin Sen Ye; Xiao Bin Xian; Yong Yang

doi:10.4028/www.scientific.net/AMR.189-193.169

Paper Titles

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Influence of Friction on the Vibratory Response of Structure
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Microstructures, Thermal Shock Resistance and Isothermal Oxidation Resistance of Nanostructured Ceria Stabilized Zirconia Coatings
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Application of Repair and Anti-Corrosion Technology on Reinforced Concrete Structures of a Domestic Wharf
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Study on High-Temperature Oxidation Characteristics of Pure Vanadium
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Friction and Wear Characteristics of Electrodeposited Ni-MoS₂/Al₂O₃ Composite Coating
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Influence of Liquid Phase Migration on Intermittent Extrusion of Aqueous Al₂O₃ Paste
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On the Dispersants of Diamond-Ni-P Composite Electroless Plating and Properties of the Coating
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High Temperature Oxidation Behavior of (Ti, Al) C Ceramic Coatings on Carbon Steel Prepared by Electrical Discharge Coating in Kerosene
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Study on High-Temperature Oxidation Characteristics of Pure Vanadium

Abstract:

The pure vanadium specimen of 99.65% relative density was prepared by hot isostatic pressing. The initial oxidation characteristics and constructions of pure vanadium at different temperatures were analyzed by thermogravimetric test apparatus (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results show that the oxidation process and oxygen uptake of pure vanadium follow parabolic kinetics. The activation energy for the oxidation process is 118KJ/mol. With the rising of temperature, the predominant oxide phases are VO_0.03, VO₂ and V₂O₅ in turn. Under 500°C , the specimens’ surface morphology is densely distributed. While at 600°C , the fine fish-scale-shaped morphology is evenly distributed.