Fabrication and numerical simulation of a quadrupoles sintered Alnico 5 magnet

Abstract

In this study, an Alnico 5 quadrupoles magnet was manufactured by powder metallurgy followed by heat treatment in an external applied magnetic field. A physical model for the distribution of magnetization was proposed inside the magnet. Then the finite elements method, using the FlexPDE software package, was applied to deduce the magnetic field profile created by the magnet. The magnetic flux and magnetic induction near one pole of the magnet was measured, and a good agreement was found with the simulated results.

Keywords: Alnico, magnetic simulation, magnetization model, powder metallurgy.