NEW BALL-MILLING INDUCED SOLID-SOLUTION AND AMORPHOUS PHASES IN THE ZN-V SYSTEM

The solid phase transition induced by ball milling in the Zn-V system has been investigated by X-ray diffraction, differential scanning calo rimetry and thermodynamic analysis approaches. Milling for a short per iod in the Zn-V system leads to the formation of an extensive solid so lution, despite these elements being virtually immiscible in the solid state, continuous milling results in complete amorphization, finally transforming to a vanadium-gas compound. A strong case can be made tha t the driving force for amorphization is not provided by the enthalpy of mixing, but by stored deformation energy in the system.