Editing Magnet (section)

=== Costs ===

The {{as of|2008|alt=current}} cheapest permanent magnets, allowing for field strengths, are flexible and ceramic magnets, but these are also among the weakest types. The ferrite magnets are mainly low-cost magnets since they are made from cheap raw materials: iron oxide and Ba- or Sr-carbonate. However, a new low cost magnet, Mn–Al alloy,<ref name=":0">{{cite web |title=Nanostructured Mn-Al Permanent Magnets (patent)
|url=http://www.freepatentsonline.com/y2016/0307677.html |access-date=18 Feb 2017}}
</ref>{{Primary source inline|date=July 2022}}<ref>{{Cite journal |last1=Keller |first1=Thomas |last2=Baker |first2=Ian |date=2022-02-01 |title=Manganese-based permanent magnet materials |url=https://doi.org/10.1016/j.pmatsci.2021.100872 |journal=Progress in Materials Science |volume=124 |pages=100872 |doi=10.1016/j.pmatsci.2021.100872 |issn=0079-6425}}</ref><ref name=MnAl-ov>[https://www.mdpi.com/1996-1073/13/21/5549/pdf ''An Overview of MnAl Permanent Magnets with a Study on Their Potential in Electrical Machines'']</ref> has been developed and is now dominating the low-cost magnets field.{{citation needed|date=November 2022}} It has a higher saturation magnetization than the ferrite magnets. It also has more favorable temperature coefficients, although it can be thermally unstable.
[[neodymium magnet|Neodymium–iron–boron (NIB)]] magnets are among the strongest. These cost more per kilogram than most other magnetic materials but, owing to their intense field, are smaller and cheaper in many applications.<ref>[http://www.magnetsales.com/Design/FAQs_frames/FAQs_3.htm#howrated Frequently Asked Questions] {{webarchive|url=https://web.archive.org/web/20080312192829/http://www.magnetsales.com/Design/FAQs_frames/FAQs_3.htm |date=2008-03-12 }}. Magnet sales & Mfct Co Inc. Retrieved on 2011-10-08.</ref>