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作 者:Pengju Yang Jie He Baodong You Mingwei Zhu Shaogang Wang Ivan Kaban Jiuzhou Zhao
机构地区:[1]Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [2]School of Materials Science and Engineering,Shenyang Aerospace University,Shenyang 110136,China [3]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China [4]Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [5]Leibniz Institute for Solid State and Materials Research-IFW Dresden,Helmholtzstr,20,01069 Dresden,Germany
出 处:《Journal of Materials Science & Technology》2024年第21期27-36,共10页材料科学技术(英文版)
基 金:supported by the Space Application System of China Manned Space Program(No.KJZ-YY-NCL06);the National Natural Science Foundation of China(Nos.51974288,52174280);the Scientific Instrument Developing Project of the Chinese Academy of Sciences(No.YJKYYQ20210012);the IMR Innovation Fund(No.E255A901).
摘 要:Liquid-solid phase separation of permalloy in liquid Mg results in selectively dissolved Ni,which provides a unique opportunity for the design of immiscible heterogeneous composite materials and the comprehensive metal recycling of permalloy scraps.A guideline of the alloy design for the liquid-solid phase separation system was proposed.The effects of immersion temperature and time on the Ni extraction were studied by an experimental method.The diffusion behavior of Ni from the permalloy to liquid Mg and the microstructure evolution in the permalloy during the liquid-solid phase separation were discussed.The results show that the Ni in the permalloy was quickly extracted into the liquid Mg and formed an Mg-Ni alloy,while the other components such as Fe,Co,and Mn were held back in the phase-separated permalloy.The phase-separated permalloy with the solidified Mg exhibits a three-dimensional(3D)Fe/Mg bicontinuous composite structure.Furthermore,simple treatments were carried out for the reaction products such as the Fe/Mg bicontinuous composite and the Mg-Ni alloy,and the recycling strategies for functionalization of these treated reaction products were provided.A 3D porous Fe-based alloy with electromagnetic interference(EMI)shielding efficiency of 52 dB can be obtained if Mg is removed from the Fe/Mg bicontinuous composite.Instead of the complete separation of pure Ni from the recycled Mg-Ni alloy by vacuum distilling,the Mg-Ni alloy can be enriched into Mg2 Ni as an initial hydrogen storage material.
关 键 词:Immiscible alloys Liquid-solid phase separation PERMALLOY Selective extraction RECYCLING
分 类 号:TG14[一般工业技术—材料科学与工程]
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