The phenomena occurring along borderline of the phase shares in the casted Al-Al2O3 composites

In the foregoing work, one analyses in detail the use of nickel cover on the Al2O3 particles in composites with the Al matrix (Al alloy). The mechanisms of developing the Al-Ni combination on the interface were the subject of the detailed analysis. The aim of the work was to present the model research, the aim of which is to describe mechanism of the combination in the sphere of aluminum-nickel sphere, in gradient. The research of the combination between the above mentioned metals was conducted in gradient of the heating temperature lower than the melting temperature of aluminum and in the time of parch. One observed visible changes in the structure and chemical composition on the butt of those metals, caused by the concentration diffusion mechanisms. Moreover, in the temperature of 640oC in the time of 48 hours, one observed the Frenkel pores.