Preparation method for gadolinium oxide/tungsten/aluminum neutron and gamma ray core-shell co-shielding material

The invention discloses a preparation method for a gadolinium oxide/tungsten/aluminum neutron and gamma ray core-shell co-shielding material, belongs to the technical field of preparation and application of nonferrous metal materials, and aims at meeting the protection requirement of nuclear power station spent fuel storage grid neutron radiation shielding. According to the preparation method, tungsten powder, gadolinium oxide powder and aluminum alloy powder are adopted as raw materials, and powder metallurgy blank making and rolling are performed to prepare a compact gadolinium oxide/tungsten/aluminum neutron and gamma ray core-shell co-shielding plate, a neutron absorption plate is silver white, the neutron absorption rate reaches 96%, gadolinium oxide is uniformly distributed, particles and a substrate are tightly connected, the tensile strength reaches 300 MPa, the elongation is 4%, the preparation method is advanced and reasonable in process and accurate and detailed in parameter, and is an advanced met