The successful development of the CAS metal film anisotropy nanocomposite rare earth permanent magnetic multilayer
In 2014 September, the Chinese Academy of Sciences Institute of Shenyang National Laboratory for materials science of metallic magnetic materials and magnetic studies of scientific research personnel for the first time in the world, the success of soft magnetic phase and hard magnetic phase isolation layer composed of anisotropic nanocomposite rare earth permanent magnetic multilayer film was prepared by. Study on anisotropic nanocomposite rare earth permanent magnetic multilayer film material and preparation, to clarify the mechanism of exchange coupling and continue to improve the magnetic nano composite magnet can be very important. Nature is like a tall thin soft magnetic materials, and magnetic hard magnetic material can features like short fat. Research ideas in nanocomposite permanent magnetic material is the two fat and thin form a joint combat team, which can make full use of their respective advantages conditions. To achieve this objective, the fat and the thin to fully unifies in together, the best is a one in a nanometer scale neatly arranged. Related work successfully anisotropic nano composite multilayer films preparation and indirect and long-range exchange coupling effect caused by the attention of the international counterparts, promoted the magnetism of the permanent magnet can raise. Anisotropic nanocomposite permanent magnetic films can be directly applied to the micro motor and sensor etc.. If the realization of anisotropic nanocomposite magnets ideas can be successfully applied to block material, it will greatly reduce the cost of rare earth permanent magnetic materials, which have a great economic benefit.
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