Study of the Dynamics of the Agglomerate Layer Thickness Under Mechanical Activation of a Ti + Ni Powder Mixture

Abstract

53.091 An experimental study of the process of mechanical activation (MA) of a nickel and titanium powder mixture has been carried out. It is revealed that the MA time significantly affects the physical-chemical and structural transformations of the grinded mixture. The reason for such an effect is the change of the composition and structure of the layered agglomerates formed during MA from the mixture components. The kinetic constant characterizing the rate of growth of the interphase surface in the agglomerates during mechanical treatment of the powder mixture is estimated using the method of inverse problem. Theoretical calculations of the layer thickness and interphase surface in the agglomerate are carried out.