Mechanical improvement of rare earth permanent magnets

摘要

A process for mechanically strengthening a permanent magnet includes providing nanofibers or nanotubes, providing a ferromagnetic metal, defining a mixture by mixing the ferromagnetic metal with the nanofibers or nanotubes and sintering the mixture.

主权项

1. A process for mechanically strengthening a permanent magnet, comprising:
forming carbon and boron-nitride nanofibers or nanotubes by applying catalyst particles to a substrate and reacting amorphous carbon and boron powder with ammonia in the presence of the catalyst particles; selecting one or more metal oxides; defining a mixture by mixing the metal oxide with the nanofibers or nanotubes; and pressing and sintering the mixture to form the permanent magnet.