Graphene rare earth permanent magnet material and preparation method thereof

Abstract

The invention relates to the technical field of permanent magnet materials, in particular to a graphene rare earth permanent magnet material and a preparation method thereof. The graphene rare earth permanent magnet material comprises the following raw materials in percentage by mass: 20.6%-23.4% of neodymium, 6.6%-7.5% of praseodymium, 0.95%-1.20% of boron, 0.4%-0.6% of cobalt, 0.11%-0.15% of copper, 2.0%-2.4% of lanthanum, 1.7%-2.1% of cerium, 1%-5% of graphene and the balance of iron. The graphene rare earth permanent magnet material has good temperature resistance, conductivity and magnetic performance and does not contain terbium and dysprosium heavy rare earth elements, the cost of a rare earth permanent magnet is greatly reduced while the graphene rare earth permanent magnet material with excellent performance is obtained, effective utilization of rare earth resources is facilitated, and the product yield is increased; and the preparation method is simple in process, convenient to control, low in production cost and high in production efficiency, and the prepared product is stable in performance.

Description

technical field [0001] The invention relates to the technical field of permanent magnet materials, in particular to a graphene rare earth permanent magnet material and a preparation method thereof. Background technique [0002] The main components of NdFeB permanent magnet materials are rare earth elements neodymium, iron, and boron. The NdFeB permanent magnet materials in the prior art are often added with a large amount of heavy metal elements dysprosium, terbium and other rare earth metals to obtain high-performance permanent magnets. Material. In recent years, with the development of economy and social progress, NdFeB permanent magnet materials have been widely used in machinery, transportation, energy, medical, IT, home appliances and other industries, and the demand for NdFeB permanent magnet materials in production is increasing increase, but due to the high cost of rare earth mining, high prices of rare earth elements such as dysprosium and terbium, low supply, stri...

AI Technical Summary

Problems solved by technology

In recent years, with the development of economy and social progress, NdFeB permanent magnet materials have been widely used in machinery, transportation, energy, medical, IT, home appliances and other industries, and the demand for NdFeB permanent magnet materials in production is increasing increase, but due to the high cost of rare earth mining, high prices of rare earth elements such as dysprosium and terbium, low supply, strict control, and the temperature resistance, conductivity and product stability of NdFeB permanent magnets in the prior art Sex needs to be improved

Images