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- Title
Synthesizing the Hard Magnetic Low-Temperature Phase of MnBi Alloy: Challenges and Prospects.
- Authors
Sarkar, Angshuman; Basu Mallick, Amitava
- Abstract
The low-temperature phase (LTP) of the binary MnBi alloy system is well recognized for its potential to yield the highest maximum energy product value among the rare earth element-free permanent magnets. However, studies have revealed that the magnetic properties of LTP-MnBi are extremely sensitive to the purity of the LTP phase, and the major challenge lies in the formulation and selection of the appropriate processing techniques for preparing pure LTP-MnBi. During the last 2 decades, up-gradation in the purity of LTP-MnBi has been achieved through the development of new preparation methods. A review is presented on the recent advancements made in developing high-purity LTP-MnBi through the newly developed routes and the effect of the process parameters on the purity, physical and magnetic properties of the LTP-MnBi system.
- Subjects
BINARY metallic systems; RARE earth metals; MAGNETIC properties; PERMANENT magnets; ALLOYS; RARE earth metal alloys
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2020, Vol 72, Issue 8, p2812
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-020-04134-3