METHOD OF MANUFACTURING MOSI2 POWDER SINTERED COMPACT

摘要

Disclosed herein is a sintered molybdenum disilicide (MoSi ₂ ) powder having excellent oxidation resistance by a low-temperature sintering method, and the sintered product is compacted at low temperature to produce a high-density sintered product.;That is, a diffusion path for facilitating the movement of molybdenum and silicon during sintering by increasing the driving force required for sintering by finely dividing the molybdenum disilicide powder and adding iron (Fe) or nickel (Ni) to the powder surface and grain boundaries, And low - temperature milling was carried out to prevent molybdenum and silicon, which are components of molybdenum disilicide, from being contaminated from oxygen in the atmosphere.;In the molybdenum disilicide product produced according to the present invention, when the molybdenum disilicide is heated to 400 to 600 ° C in the atmosphere, no rapid oxidation due to the formation of volatile molybdenum oxide is generated, It was found that the oxidation resistance to atmosphere was excellent.