The invention discloses an amorphous matrix composite material and a preparation method thereof, and belongs to the technical field of
new materials. The matrix of the
amorphous matrix composite material is a Cu-ETM amorphous
alloy; the Cu-ETM amorphous
alloy comprises Cu and ETM (early
transition metal) elements; the atomic percent
chemical composition of the Cu-ETM amorphous
alloy is Cu<100>--AlETM, wherein the value of a is more than or equal to 0 and less than or equal to 25, the value of b is more than or equal to 25 and less than or equal to 75, ETM is Zr<1-x-y>Hf<x>Ti<y>, the value of x is more than or equal to 0 and less than or equal to 1, and the value of y is more than or equal to 0 and less than 0.5. The preparation method of the
amorphous matrix composite material comprises the following steps: firstly, preparing an ETM-O intermediate alloy; secondly, determining the
chemical composition of the whole composite material with the aim that a Cu<100>--AlETM amorphous matrix contains ETMO<2>
oxide precipitates with different volume fractions, preparing alloy raw materials with the ETM-O intermediate alloy, industrial pure ETM, Cu and Al as raw materials, and obtaining alloy ingots with uniform components through a non-consumable
electric arc melting method; and finally, regulating and controlling
nucleation and growth
kinetics of an
oxide precipitated phase by changing a
cooling speed range by utilizing a melt rapid
quenching and
copper mold suction
casting technology, so as to finally obtain the amorphous matrix composite material. Nanometer
oxide particles with different densities and sizes are dispersed and distributed on the obtained amorphous matrix composite material, and the precipitate / matrix
interface bonding is good.