LOW-COST SOFT AND HARD DUAL-PHASE NANO COMPOSITE PERMANENT MAGNET CONDUCTIVE CONTACT AND FABRICATION METHOD THEREFOR

摘要

A soft and hard dual-phase nano composite permanent magnet conductive contact and a fabrication method therefor. The permanent magnet conductive contact consists of three parts: a fixed sleeve, a core body and a coil; the core body is a composite core obtained by using an alloy as a core and pure copper as a shell, the alloy being obtained by mixing the following raw materials by parts per weight: 6-8 parts lanthanum, 3.5-4.5 parts cerium, 100-110 parts boron-iron FeB22C0.05, and 5-7 parts yttrium, then undergoing multiple cold pressing deformation adjustments, and finally annealing; and the composite core is sleeved in the fixed sleeve; and the coil is formed by winding an aniline modified carbon fiber aluminum core composite wire wound on the surface of the core body, and the coil is wound on the inner surface of the fixed sleeve. The soft and hard dual-phase nano composite permanent magnet conductive contact and the fabrication method therefor are low-cost, only use abundant rare earths, and have a high magnetic energy product, a high Curie temperature, and good thermal stability.