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

fYear

2008

fDate

24-25 Sept. 2008

Firstpage

43

Lastpage

49

Abstract

The paper presents the results of investigation of magnetic, physico-mechanical and operation parameters of sintered magnets of composition (at. %) Sm_0.45Pr_0.16Gd_0.26Dy_0.13(Co_0.686Cu_0.08Fe_0.20Zr_0.028Be_0.006)_7.35 (Sm) Nd₁₂Tb_2.6Fe_ocr.Co₁₅Ga_0.4B₈ (Nd) /at. %/. Magnetic properties of magnets Sm and Nd have the following values: B_r (T) - 0.93, 1.04; _iH_c (kA/m) - 1824, 1440; _bH_c (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 (Sm_12.5 Gd_3.3 Er_1.9 Co_82.3).

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APEDE.2008.4720108

Filename

4720108