Invention Grant
- Patent Title: Ferrite magnet with salt and manufacturing method of the same
- Patent Title (中): 铁素体磁铁与盐和制造方法相同
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Application No.: US13962130Application Date: 2013-08-08
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Publication No.: US09552910B2Publication Date: 2017-01-24
- Inventor: Namseok Kang , Jinbae Kim , Yongho Choa , Jongyoul Kim , Gukhwan An , Sanggeun Cho
- Applicant: LG ELECTRONICS INC. , Industry-University Cooperation Foundation Hanyang University ERICA Campus
- Applicant Address: KR Seoul KR Ansan-si
- Assignee: LG ELECTRONICS INC.,INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
- Current Assignee: LG ELECTRONICS INC.,INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
- Current Assignee Address: KR Seoul KR Ansan-si
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2012-0101249 20120912
- Main IPC: H01F1/01
- IPC: H01F1/01 ; H01F1/37 ; H01F1/113

Abstract:
A ferrite magnet with salt includes 40 to 99.9 weight % of ferrite and 0.1 to 60 weight % of salt, wherein the salt has a melting point lower than a synthetic temperature of the ferrite, and the salt is melted to form a matrix between the ferrite particles, and a manufacturing thereof. The ferrite magnet with salt has advantages in terms of process conditions due to fast synthesis reaction at low temperatures compared to typical magnets, easily obtaining nano-sized particles having high crystallinity, preventing cohesion between particles and particle growth by molten salt, allowing sintering at temperatures lower than typical during the molding and sintering processes for producing a ferrite magnet with salt due to synthesized ferrite magnetic powder with salt thus preventing the deterioration of magnetic characteristics due to particle growth, and allowing alignment in the direction of magnetization easy axis to obtain higher magnetic characteristics.
Public/Granted literature
- US20140070130A1 FERRITE MAGNET WITH SALT AND MANUFACTURING METHOD OF THE SAME Public/Granted day:2014-03-13
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