Phase structure, crystallography and electrochemical properties of Laves phase compounds Ti_0.8Zr_0.2V_1.6Mn_0.8-xM_xNi_0.6

摘要

the effects of partial substitution of Mn by M (M = Fe, Al, Cr, Co) on the phase structures, crystallography and electrochem- ical properties of Laves phase compounds Ti_0.8Zr_0.2V_1.6Mn_0.8-xM_xNi_0.6 (M = Fe, Al, Cr, Co) have been studied. It is found by X-ray powder diffraction and energy dispersive X-ray spectrometer analysis that most alloys are composed of a AB_2-type hexagonal structure C14 Laves phase matrix and a BCC structure TiNi-bases secondary phase alloy and some of them con- tain another BCC phase.