The pretreatment technology of nickel electroplating was studied for Nd Fe B permanent magnetic materials, as well as its effect on plating layer by examining the appearance, measuring binding force and porosity, and salt spray corrosion test.

The loss of excitation limits the use of Nd-Fe-B permanent magnetic materials in large permanent magnets.

8B6 permanent magnets were prepared by the spark plasma sintering (SPS) technique.

It is named "the king of permanent magnet" and paid wildly attention for many years.

This paper introduces the performance characteristic of permanent magnet materials, and the influence of the performance of the two kind of commonly used permanent magnet materials.

This paper states the mechanism of mechanically alloying & its application in rare earth permanent magnet materials.

Emphatically reviewed four systems of permanent magnet material:Al-Ni-Co magnet, ferrite magnet, rare-earth magnet and glue magnet.

This paper studies the principle and characteristics of bore trepanning processing technology of Nd-Fe-B permanent magnetic material by technological experiment,which develops proper and optimum processing technological parameters and establishes an empirical formula on the feeding force by multi-element regression analysis based on data of orthogonal test.

The work principle of a bore trepanning machine for rare-earth permanent magnetic material prestented.

In this year it consists of(1) ferromagnetic shape memory infelligent materials;(2) magnetic semiconductors;(3) NdFe B permanent magnetic materials;(4) microwave absorbed magnetic materials;(5) magnetic recordingmedia.