Improvement of magnetization of submicron-sized high coercivity Sm2Fe17N3 powder by using hydrothermally synthesized sintering-tolerant cubic hematite
Source abstract
Abstract
We investigated the cause of forming of aggregates which decreases magnetization of a submicron-sized Sm2Fe17N3 powder. The aggregation was considered to be caused through sintering and growth of α-Fe particles in a hydrogen reduction treatment. We newly synthesized cubic hematite powder which has tolerance for the sintering of particles in a hydrogen reduction treatment. The aggregation of submicron-sized Sm2Fe17N3 particles was significantly reduced by using the cubic hematite as a precursor, and the magnetization was improved without decreasing the high coercivity.
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Research context
OpenAlex topics: Magnetic Properties of Alloys · Metallic Glasses and Amorphous Alloys · Geomagnetism and Paleomagnetism Studies
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Affiliations
National Institute of Advanced Industrial Science and Technology (AIST) 1 Magnetic Powder Metallurgy Research Center, , 2266-98 Anagahora, Shimoshidami, Moriyama, Nagoya 463-8560, Japan
TDK Corporation 2 Materials Development Center, , 570-2 Matsugasita, Minamihadori, Narita 268-8588, Japan
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