Published March 2021 | Version v1
Journal article Metadata-only

Phase transformation and magnetic properties of fully dense Sm(Fe0.8Co0.2)11Ti bulk magnets

Creators

  • 1. School of Materials Science and Engineering, Pusan National University, Busan 46241 (Korea, Republic of)
  • 2. Powder and Ceramics Division, Korea Institute of Materials Science, Changwon, Gyeongsangnam-do 51508 (Korea, Republic of)

Description

High density sintered Sm(Fe0.8Co0.2)11Ti bulk magnets were successfully produced using a newly developed high pressure pressing fabrication method. The purity of the hard magnetic ThMn12 phase in the bulk magnet reached to higher than 97 wt.%. The phase transformation behavior from amorphous to ThMn12 phase during heat treatment was systematically investigated by transmission electron microscopy. The remanent magnetization and maximum energy product of a bulk magnet were 96.0 emu/g and 12.22 MGOe, respectively. To the best of our knowledge, the achieved maximum energy product is the highest among all the SmFe12-based bulk magnets reported.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2020.10.030

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2020.10.030;
PII
S1359646220306886;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
193
Journal Page Range
p. 17-21
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53120202
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
DENSITY; HEAT TREATMENTS; IMPURITIES; MAGNETIC PROPERTIES; MAGNETIZATION; MAGNETS; MICROSTRUCTURE; PHASE TRANSFORMATIONS; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ELECTRON MICROSCOPY; EQUIPMENT; MICROSCOPY; PHYSICAL PROPERTIES

Optional Information

Copyright
Copyright (c) 2020 The Authors. Published by Elsevier Ltd on behalf of Acta Materialia Inc.