TECHNOLOGICAL INVESTIGATION FOR SINTERED Nd-Fe-B MAGNETS Pham Thi Thanh
Abstract1, Nguyen Hai Yen1, Nguyen Huy Dan1.
1 Institute of Materials Science, Vietnam Academy of Science and Technology
18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam.
Sintered Nd-Fe-B magnets are used more and more in practice such as motors, generators, ore-separators, magnetic cushions... To ful-fill requirements of various aspects of practical applications, further enhancement of magnetic properties and optimization of fabrication technology of these magnets are still concerned to study. In this report, we present the results of investigation of influence of grinding, sintering and annealing processes on magnetic properties of the anisotropic permanent Nd-Fe-B magnets. We have established a low cost, practical applicable technological process to manufacture Nd-Fe-B magnets in pilot scale with maximum energy product above 35 MGOe.
Keywords. anisotropic sintered magnet, coercivity, maximum energy product (BH)max, Nd-Fe-B alloy, hard magnetic material.
Authors who publish with Vietnam Journal of Science and Technology agree with the following terms:
- The manuscript is not under consideration for publication elsewhere. When a manuscript is accepted for publication, the author agrees to automatic transfer of the copyright to the editorial office.
- The manuscript should not be published elsewhere in any language without the consent of the copyright holders. Authors have the right to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of their work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are encouraged to post their work online (e.g., in institutional repositories or on their websites) prior to or during the submission process, as it can lead to productive exchanges or/and greater number of citation to the to-be-published work (See The Effect of Open Access).