Importance

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Abstract

An MM′X—Y metal composite functional material and a preparation method thereof; an MM′X—Y metal composite functional material, comprising the following components in percentage by volume: A% of M_aM′_bX_c and B% of Y, wherein each of M and M′ is any one element of a transition group or an alloy of more than one element, X is any one element of IIIA group or IVA group or an alloy of more than one element, and Y is any one element of IB group, IIB group, IIA group or IVA group, or an alloy of more than one element, wherein the value range of a, b and c is 0.8-1.2, and the sum of A% and B% is 100%; the material is prepared through smelting, annealing, crushing, mixing, pressing and curing, etc.; the mechanical performance of the MM′X—Y metal composite functional material prepared according to the present invention is far higher than the traditional MM′X material; the prepared MM′X—Y metal composite functional material has an ideal magnetothermal effect, thus can be used as a magnetic refrigeration material; the method can prepare MM′X—Y metal composite functional materials with any size and shape according to actual requirements; the method is simple, and can be easily operated and realized.

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First Claim