DEPENDENCE OF THE PHASE COMPOSITION OF PRODUCTS OF JOINT ELECTRIC-SPARK DISPERSION OF ALUMINUM AND NIKEL ON THE NATURE OF LIQUID MEDIUM
By the method of X-ray phase analysis it was showed that the phase composition of products of joint electric-spark dispersion of aluminum with nikel depends on the nature of liquid medium. In hexane, a product consisting of two phases is formed. The main phase is an intermetallic compound AlNi3 with a face-centered crystal lattice, and the second phase is metallic aluminum. The product of joint electric-spark dispersion of aluminum and nickel in alcohol also consists of two phases. The main phase is the intermetallic compound AlNi3, the second phase is nickel oxide. A more complex phase composition has a product obtained in water and consists of metallic aluminum, nickel and their oxides. The content of metals in the composition of products also depends on the nature of the liquid medium. The molar ratio of Al:Ni metals in the products obtained in hexane, alcohol and water is 1.2:1, 2.8:1 and 9.1:1, respectively.