Abstract
The rare earths criticality issue in the permanent magnets implies in a narrower sense the sudden inflation of prices of rare earth oxides and alloys that stared in 2011 and ceased in 2012 as a result of mishandling of the market in China, but more generally, it includes the issues concerning the rare earth resources and/or supply risks caused by rapid increase of the market demands coupled with increasing environmental regulations on mining or smelting operations in developing countries. Thus, there has existed R&D efforts for the development of permanent magnets that do not use or significantly reduce the usage of the rare earth metals for more than a decade, and their importance is ever increasing. In this chapter, this issue is briefly overviewed.
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References
British Geological Survey: Risk List 2015: http://www.bgs.ac.uk/mineralsuk/statistics/risklist.html/. As of 28 Aug 2017
Price–Precious Metal–Rare Earth—Rare Earth Metals, Shanghai Metals Market. http://original.metal.com/metals/rare-earth/prices. Jishaku-Navi. As of 28 Aug 2017
Rare Earths—Statistics and Information, USGS: https://minerals.usgs.gov/minerals/pubs/commodity/rare_earths. As of 28 Aug 2017
Coey, J.M.D.: Scripta Mater. 67, 524 (2012)
Tanaka, Y., Aikawa, Y.: J. Japan Soc. Powder Metall. 47, 15 (2000)
Ohtani, T., Kato, N., Kojima, S., Kojima, K., Sakamoto, Y., Konno, I., Tsukahara, M., Kubo, T.: IEEE Trans. Magn. MAG-13, 1328 (1977)
Hirayama, Y., Takahashi, Y.K., Hirosawa, S., Hono, K.: Scr. Mater. 95, 70 (2015); ibid. 138, 62 (2017)
Strnat, K., Tauber, A.: J. Less-Common Met. 93, 269 (1983)
Coey, J.M.D.: Magnetism and Magnetic Materials. Cambridge University Press, Cambridge (2010)
Hirosawa, S., Matsuura, Y., Yamamoto, H., Fujimura, S., Sagawa, M., Yamauchi, H.: J. Appl. Phys. 59, 873 (1986)
Kojima, T., Mizuguchi, M., Koganezawa, T., Osaka, K., Kotsugi, M., Takanashi, K.: Jpn. J. Appl. Phys. 51, 010204 (2012)
Lewis, L.H., Mubarok, A., Poirier, E., Bordeaux, N., Manchanda, P., Kashyap, A., Skomski, R., Goldstein, J., Pinkerton, F.E., Mishra, R.K., Kubic Jr., R.C., Barmak, K.: J. Phys.: Condens. Matter 26, 064213 (2014)
Hosoda, M., Oogane, M., Kubota, M., Kubota, T., Saruyama, H., Iihama, S., Naganuma, H., Ando, Y.: J. Appl. Phys. 111, 07A324 (2012)
Permanent Magnet Synchronous Motor Incorporating SmCo magnet for 305 Series EMUs of Kyushu Railway Company, Toshiba Review 2015 (2015) 32. https://www.toshiba.co.jp/tech/review/2015/high2015/high2015pdf/1504.pdf
Variable flux permanent magnets, Toshiba Materials Co. Ltd. https://www.toshiba-tmat.co.jp/res/theme10.htm (Japanese URL only)
Hioki, K., Hattori, A., Iriyama, T.: J. Magn. Soc. Jpn. 38, 79–82 (2014)
Hono, K., Sepehri-Amin, H.: Scripta Mater. 67, 530 (2012)
Hirota, K., Nakamura, H., Minowa, T., Honshima, M.: IEEE Trans. Magn. 42, 2909 (2006)
Sepehri-Amin, H., Ohkubo, T., Hono, K.: Acta Mater. 61, 1982 (2013)
Ostovic, V.: IEEE Ind. Appl. Conf. Record 4, 277–284 (2001)
Kato, T., Fukushige, T., Akatsu, K., Lorenz, R.: SAE Tech. Paper 2014–01, 2014 (1869)
Huang, J., Wang, X., Sun, Z.: ITEC Asia-Pacific 2014, 1569920713 (2014)
Hirosawa, S.: Adv. Nat. Sci.: Nanosci. Nanotechnol. 8, 013002 (2017)
MEXT, Element Strategy Initiative: To form core research centers. http://www.mext.go.jp/a_menu/kagaku/nano/genso/index.htm (in Japanese)
Elements Strategy Initiative Center for Magnetic Materials. http://www.nims.go.jp/eng/research/group/ESICMM/index.html
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Hirosawa, S. (2019). The Rare Earths Problem for Permanent Magnets. In: Fujisaki, K. (eds) Magnetic Material for Motor Drive Systems. Engineering Materials. Springer, Singapore. https://doi.org/10.1007/978-981-32-9906-1_22
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DOI: https://doi.org/10.1007/978-981-32-9906-1_22
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