Electrochemical corrosion behavior of Nd-Fe-B permanent magnets with modified microstructure

Authors :: Liu, W.Q.
Yue, M.
Zhang, D.T.
Zhang, J.X.
Liu, X.B.
Source :: Journal of Applied Physics. April 1, 2009, Vol. 105 Issue 7, 07A709-1-07A709-3
Publication Year :: 2009
Abstract: Polarization curve and electrochemical impedance spectroscopy tests are used for examining the corrosion kinetics for both spark plasma sintered (SPS) and conventional sintered Nd-Fe-B magnets in different electrolytes. The studies have shown that the unique microstructure in SPS magnets has restrained the aggressive intergranular corrosion taking place along Nd-rich phases in conventional magnets.

Subjects :: Impedance spectroscopy -- Usage
Iron alloys -- Magnetic properties
Iron alloys -- Electric properties
Neodymium -- Electric properties
Neodymium -- Magnetic properties
Magnets, Permanent -- Mechanical properties
Magnets, Permanent -- Electric properties
Sintering -- Usage
Physics

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