HOME

Science and Technology of Energetic Materials

Vol.73, No.3 (2012)

Research paper

Magnetic and corrosion resistance properties of NdFeBCo magnets fabricated using underwater shock compaction
Youngkook Kim, Shigeru Itoh, and Chai-Bong Lee
p.70-75

Abstract

NdFeBCo magnets were fabricated using underwater shock compaction, and their magnetic, mechanical and corrosion resistance properties were investigated. Cracks and voids were seen to form in the shock-consolidated magnets and increased with increasing cobalt (Co) additions. Magnetization also decreased with increasing Co additions ; however, coercivity increased. Regarding corrosion resistance, a shock-consolidated NdFeB magnet without Co addition showed faster oxidation velocity than compacts with Co additions. Regarding hardness value, NdFeBCo with Co addition of 5% addition showed a sharp increase ; however, the value decreased when Co addition exceeded 10%.

Keywords

underwater shock compaction, NdFeB magnet, corrosion resistance

© Copyright 1999-2017 Japan Explosives Society. All right reserved.