The influence of aluminium and aluminium oxide on the effects of mechanical activation of nickel hydroxocarbonate

The chemical and physical processes occurring during the grinding of nickel hydroxocarbonate and mixtures of nickel hydroxocarbonate with aluminium and aluminium oxide were discussed. For mechanical treatment a planetary ball mill was used. The phase analyses of ground products were carried out using thermogravimetry and X-ray diffraction methods. The amount of Ni-2(OH)(2)CO3 undecomposed and Al2O3.xH(2)O, xNiO, Ni-o, NixAly alloys and remained Al-o in the systems strongly depends on the proportion of components and on the duration of grinding in a mill which was used in the study. The comparative results are presented.