Title :
To question about the use of hard magnetic alloys based of Nd-Fe-B in magnetic focusings systems of elektrovakuum devices
Author :
Sergeyev, S.V. ; Sergeyev, K.L. ; Lukin, A.A. ; Perevoschikov, P.S. ; Dormidontov, A.G. ; Kanevsky, E.I. ; Akimov, P.I. ; Kozirev, D.V.
Author_Institution :
R&P Co.(Magnets & Magn. Syst.), Moscow
Abstract :
The paper presents the results of investigation of magnetic, physico-mechanical and operation parameters of sintered magnets of composition (at. %) Sm0.45Pr0.16Gd0.26Dy0.13(Co0.686Cu0.08Fe0.20Zr0.028Be0.006)7.35 (Sm) Nd12Tb2.6Feocr.Co15Ga0.4B8 (Nd) /at. %/. Magnetic properties of magnets Sm and Nd have the following values: Br (T) - 0.93, 1.04; iHc (kA/m) - 1824, 1440; bHc (kA/m) - 700, 808; (BH)max (kJ/m3) - 162, 208; alpha (295-495 K): -0.010, -0.070. The analysis with the aim to compare the investigated alloys with magnets of RCo5 type has been made (Sm12.5 Gd3.3 Er1.9 Co82.3).
Keywords :
boron alloys; dysprosium alloys; electron beam focusing; gadolinium alloys; iron alloys; magnetic devices; neodymium alloys; permanent magnets; praseodymium alloys; samarium alloys; Nd-Fe-B; elektrovacuum devices; hard magnetic alloys; magnet sintering; magnetic focusing systems; magnetic properties; mechanical operation; physico-mechanical properties; Cobalt alloys; Iron; Magnetic analysis; Magnetic devices; Magnetic properties; Magnets; Neodymium; Optical character recognition software; Samarium alloys; Zirconium;
Conference_Titel :
Actual Problems of Electron Devices Engineering, 2008. APEDE '08. International Conference on
Conference_Location :
Saratov
Print_ISBN :
978-1-4244-2121-3
Electronic_ISBN :
978-1-4244-2122-0
DOI :
10.1109/APEDE.2008.4720108
