Oxidation behavior of vanadium carbide powder.

Catalytic Oxidation of 4-Methylpyridine on Modified Vanadium Oxide Catalysts

The reaction of gas-phase oxidation of 4-methylpyridine on individual V2O5, binary and ternary vanadium-oxide catalysts was studied. These catalysts were modified by additives of SnO2 and TiO2. It was found that modifying V2O5 leads to increase the activity of binary contacts. Upon transition from binary V2O5<...

Fundamental Aspects of Silicon Carbide Oxidation

Silicon carbide (SiC), which exhibits a wider band gap as well as a superior breakdown field and thermal conductivity over conventional Si, has gained considerable attention for future power electronics [1]. Among the various types of power devices, metal-oxide-semiconduc‐ tor field-effect transistors (MOSFETs), which provide a normally-off characteristic, should become a key component for next...

Oxidation Behaviour of Silicon Carbide - a Review

Silicon Carbide as an inorganic material possesses properties like high thermochemical stability, high hardness and fracture toughness, low thermal expansion coefficient etc. It is therefore, widely used in the making of refractory, semiconductor devices, combustion engines, etc. Being a nonoxide, it has a tendency to get oxidized at elevated temperature under oxidizing atmosphere. Oxidation of...

The Active Oxidation of Silicon Carbide

The high temperature oxidation of silicon carbide occurs in two very different modes. Passive oxidation forms a protective oxide film which limits further attack of the SiC: SiC(s) + 3/2 0 2(g) = Si02(s) + CO(g) Active oxidation forms a volatile oxide and may lead to extensive attack of the SiC: SiC(s) + 0 2(g) = SiO(g) + CO(g) Generally passive oxidation occurs at higher oxidant pressures and ...

Thermal Oxidation Mechanism of Silicon Carbide