STUDY ON TECHNOLOGICAL PARAMETERS OF SINTERED Fe-Al₂O₃ COMPOSITE MATERIALS

The paper has studied the influences of sintering temperature, time and atmosphere, particle size of dispersion phase and its content and other technological parameters on the density, hardness and tensile property of Fe-Al₂O₃ composite materials. The results have pointed out that ofter a given content of dispersion phase has reached a given value for optimum sintering temperature and sintering time required, it will have no obvious effects on sintering. Decreasing the particle size of dispersion phase and using pure hydrogen as sintering atmosphere can be advantageous to the densification during sintering and make on improvement of properties of products.