High-energy extrusion-molded Nd-Fe-B magnets

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · IEEE Translation Journal on Magnetics in Japan

DOI:https://doi.org/10.1109/TJMJ.1994.4565930· OSTI ID:89693

Ikuma, K; Akioka, K; Shimoda, T; Watanabe, R; Miyadera, H

High-energy extrusion-molded magnets, composed of isotropic Nd-Fe-B powder and Nylon-12, were developed. The mechanical properties and packing factor of the extruded products were investigated. With proper adjustment of the magnetic powder distribution, the extruded products contained 78 vol% magnetic powder and had a (BH){sub max} of 9.9 MGOe. The shearing strength of the extruded products was 7.83 kgf/mm{sup 2}, which is about 1.6 times that of compression-molded magnets with the same formulation. The porosity fraction in the extruded products was 1.1%, which is significantly less than in compression-molded magnets.

• Sponsoring Organization: USDOE
• OSTI ID: 89693
• Journal Information: IEEE Translation Journal on Magnetics in Japan, Journal Name: IEEE Translation Journal on Magnetics in Japan Journal Issue: 5 Vol. 9; ISSN ITJJER; ISSN 0882-4959
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
BORON ALLOYS
EXTRUSION
FABRICATION
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETS
MECHANICAL PROPERTIES
MOLDING
NEODYMIUM ALLOYS