AMORPHOUS VANADIUM-GALLIUM COMPOUND MATERIAL AND ITS MANUFACTURE

摘要

PURPOSE:To obtain an amorphous V-Ga compound material useful as a magnetic material, an ionic conductive material, a catalyst or the like by melting a mixture consisting of V2O5 and Ga2O3 in a specified ratio by heating and by cooling the melt very rapidly. CONSTITUTION:V2O5 is mixed with Ga2O3 so as to provide a composition represented by a formula (V2O5)1-x.(Ga2O3)x (where 0.70>=x>0). The starting material mixture is put in a tube 7 having a melt spraying nozzle 11. The mixture is melted by heating to a temp. above the m.p., and the melt is very rapidly cooled by spraying from the nozzle 11 on the surface of a roll 13 rotating at high speed to obtain the desired amorphous V-Ga compound material of high quality. An oriented polycrystalline thin film material is manufactured by heat- treating the compound material at a temp. below the crystallization temp. for a prescribed time.