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निग्राहिता
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अंगूठाकार| ग्रेन-ओरिएन्टेड विद्युत इस्पात के लिए हिस्टैरिसीस लूप का समूह। यहाँ B R, मंदता को दर्शाता है और H C निग्राहिता है । बाहर का लूप जितना चौड़ा होता है, निग्राहिता उतनी ही अधिक होती है। पाशों (लूप्स) की गति (ट्रेसिंग) वामावर्त है।
निग्राहिता (Coercivity) किसी चुम्बकीय पदार्थ की उस क्षमता की माप है जिससे वह पदार्थ किसी बाहरी चुम्बकीय क्षेत्र में रखने पर बिना विचुम्बकित हुए रह सकता है।
कुछ पदार्थों की निग्राहिता
+कुछ चुंबकीय पदार्थों की निग्राहिता पदार्थ निग्राहिता (kA/m) सुपर मॉडल</br> (16 Fe : 79 Ni : 5 Mo ) 0.0002 Handbook of magnetic measurements Tumanski S. 2011 CRC Press 9781439829523 Boca Raton, FL 131,133 पर्मलॉय ( Fe : 4 Ni ) 0.0008–0.08 M. A. Akhter-D. J. Mapps-Y. Q. Ma Tan-Amanda Petford-Long-R. Doole Mapps Ma Tan Petford-Long Doole 1997 Thickness and grain-size dependence of the coercivity in permalloy thin films Journal of Applied Physics 81 8 4122 1997JAP....81.4122A 10.1063/1.365100 लोहे का बुरादा (0.9995 wt ) 0.004-37.4 http://hyperphysics.phy-astr.gsu.edu/Hbase/tables/magprop.html Magnetic Properties of Solids Hyperphysics.phy-astr.gsu.edu 22 November 2014 इलेक्ट्रिकल स्टील (11Fe: Si) ०.०३२-०.०32२ http://cartech.ides.com/datasheet.aspx?E=193~192~191~190~189&CK=1967748 timeout Cartech.ides.com 22 November 2014July 2020 कच्चा लोहा (1896) ०.१६ https://books.google.com/books?id=G0cOAAAAYAAJ&pg=PA133 Dynamo-electric machinery Thompson Silvanus Phillips 1896 22 November 2014 निकल (0.99 wt) ०.०५६-२३ M. S. Miller-F. E. Stageberg-Y. M. Chow-K. Rook-L. A. Heuer Stageberg Chow Rook Heuer 1994 Influence of rf magnetron sputtering conditions on the magnetic, crystalline, and electrical properties of thin nickel films Journal of Applied Physics 75 10 5779 1994JAP....75.5779M 10.1063/1.355560 फेराइट चुंबक</br> (Zn x FeNi 1 O x O 3 ) १.२१६ Zhenghong Qian Geng Wang Sivertsen J.M. Judy J.H. 1997 Ni Zn ferrite thin films prepared by Facing Target Sputtering IEEE Transactions on Magnetics 33 5 3748–3750 1997ITM....33.3748Q 10.1109/20.619559 2 एफ: सह, https://books.google.com/books?id=y0FF19lud5YC&pg=PA142 Handbook of Charged Particle Optics, Second Edition Orloff Jon 2017-12-19 9781420045550 22 November 2014 लोहे का खंभा 19 कोबाल्ट (0.99 wt) 0.8-72 Luo Hongmei Wang Donghai He Jibao Lu Yunfeng 2005 Magnetic Cobalt Nanowire Thin Films The Journal of Physical Chemistry B 109 5 1919–22 10.1021/jp045554t 16851175 अल्निको ३०-१५० http://www.arnoldmagnetics.com/wp-content/uploads/2017/10/Cast-Alnico-Permanent-Magnet-Brochure-101117-1.pdf संग्रहीत प्रति 22 जनवरी 2021 30 अक्तूबर 2020 https://web.archive.org/web/20201030190314/http://www.arnoldmagnetics.com/wp-content/uploads/2017/10/Cast-Alnico-Permanent-Magnet-Brochure-101117-1.pdf dead डिस्क ड्राइव रिकॉर्डिंग माध्यम</br> ( Cr : Co : Pt ) १४० Yang M.M. Lambert S.E. Howard J.K. Hwang C. 1991 Laminated CoPt Cr/Cr films for low noise longitudinal recording IEEE Transactions on Magnetics 27 6 5052–5054 1991ITM....27.5052Y 10.1109/20.278737 नियोडिमियम चुंबक (NdFeB) ००- C. D. Fuerst-E. G. Brewer Brewer 1993 High‐remanence rapidly solidified Nd‐Fe‐B: Die‐upset magnets (invited) Journal of Applied Physics 73 10 5751 1993JAP....73.5751F 10.1063/1.353563 http://wondermagnet.com/magfaq.html WONDERMAGNET.COM - NdFeB Magnets, Magnet Wire, Books, Weird Science, Needful Things Wondermagnet.com 22 November 2014 11 फ़रवरी 2015 https://web.archive.org/web/20150211041455/http://www.wondermagnet.com/magfaq.html dead 12 Fe : 13 Pt (Fe 48 Pt 52 ) ≥980 Chen Nikles 2002 ? ( Dy, Nb, Ga ( Co ): २ Nd : १४ Fe : B ) 2040–2090 Bai G. Gao R.W. Sun Y. Han G.B. Wang B. January 2007 Study of high-coercivity sintered NdFeB magnets Journal of Magnetism and Magnetic Materials 308 1 20–23 2007JMMM..308...20B 10.1016/j.jmmm.2006.04.029 Jiang H. Evans J. O’Shea M.J. Du Jianhua 2001 Hard magnetic properties of rapidly annealed NdFeB thin films on Nb and V buffer layers https://archive.org/details/sim_journal-of-magnetism-and-magnetic-materials_2001-03_224_3/page/233 Journal of Magnetism and Magnetic Materials 224 3 233–240 2001JMMM..224..233J 10.1016/S0304-8853(01)00017-8 समैरियम-कोबाल्ट चुंबक</br> (2 Sm : 17 Fe : 3 N, 10के ) <४०-२28०० Nakamura H. Kurihara K. Tatsuki T. Sugimoto S. Okada M. Homma M. October 1992 Phase Changes and Magnetic Properties of Sm 2 Fe 17 N x Alloys Heat-Treated in Hydrogen IEEE Translation Journal on Magnetics in Japan 7 10 798–804 10.1109/TJMJ.1992.4565502 Rani R. Hegde H. Navarathna A. Cadieu F. J. 15 May 1993 High coercivity Sm 2 Fe 17 N x and related phases in sputtered film samples Journal of Applied Physics 73 10 6023–6025 1993JAP....73.6023R 10.1063/1.353457 4841321 Nakamura H. Kurihara K. Tatsuki T. Sugimoto S. Okada M. Homma M. October 1992 Phase Changes and Magnetic Properties of Sm 2 Fe 17 N x Alloys Heat-Treated in Hydrogen IEEE Translation Journal on Magnetics in Japan 7 10 798–804 10.1109/TJMJ.1992.4565502 Rani R. Hegde H. Navarathna A. Cadieu F. J. 15 May 1993 High coercivity Sm 2 Fe 17 N x and related phases in sputtered film samples Journal of Applied Physics 73 10 6023–6025 1993JAP....73.6023R 10.1063/1.353457 4841321 समैरियम-कोबाल्ट चुंबक 3200 de Campos M. F. Landgraf F. J. G. Saito N. H. Romero S. A. Neiva A. C. Missell F. P. de Morais E. Gama S. Obrucheva E. V. July 1998 Chemical composition and coercivity of SmCo5 magnets http://www.repositorio.unicamp.br/handle/REPOSIP/62990 Journal of Applied Physics 84 1 368–373 1998JAP....84..368D 10.1063/1.368075जनवरी 2022 InternetArchiveBot
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