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Is bonded NdFeB a composite material?

Composite materials are made by physical or chemical methods to make two or more materials with different properties, which are composed of new materials with new properties on the macro level. A variety of materials in the performance of each other's strengths and weaknesses, resulting in synergistic effects, the comprehensive performance of the newly obtained materials is better than the original composition of the material and to meet a variety of different requirements, so the bonded neodymium-iron-boron is a composite material?


Generally defined composites should have the following characteristics.


1. Composites are materials designed and manufactured by people according to their needs.


2. The composite material must be composed of two or more material components with different physical and chemical properties.


3. It has a designable structure, can design composite structure.


4. Composite materials not only maintain the advantages of each component material performance, and can make up for the shortcomings of the original single material.


Matrix materials for composites are categorized into two main groups: metallic and non-metallic. So let's examine whether bonded NdFeB has the above characteristics?


The following image shows a multi pole bonded ring magnets

multi pole bonded ring magnets


Bonded NdFeB magnets are composed of two materials with different physicochemical properties, namely, fast quenching NdFeB powder and binder. The fast quenching NdFeB magnet powder is made from praseodymium and iron, boron and other metals alloyed and then made into powder, with metal and magnetic functions. The binder for bonding NdFeB is usually a resin (thermosetting resin, e.g. epoxy resin; it can also be thermoplastic resin), which has the general characteristics of specific plastics, good fluidity, and high plasticity.


The metal material of bonded NdFeB is mixed with resin material, and after molding process, we get different sizes of bonded NdFeB rings and arcs, which have the magnetic function of NdFeB rare-earth magnets as well as the plasticizing advantage of resins, so the bonded NdFeB is a kind of excellent composite material.


Direct access to product columns;

Bonded Neo Magnets


More bonded NdFeB introduction;

Why are bonded neodymium magnets mainly coating with epoxy coated?

How are bonded neodymium magnetic rings magnetized?

Bonded NdFeB Physical Characteristics and Properties DataSheet

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