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Evaluation of the corrosion behaviour for the permanent magnets based on rare earths, used in aeronautical industry

W. KAPPEL1,* , M. M. CODESCU1, N. STANCU1, D. POPA2

Affiliation

  1. R&D National Institute for Electrical Engineering ICPE Advanced Research, 313 Splaiul Unirii, Bucharest, Romania
  2. South Airport Otopeni, Romania

Abstract

Applications with permanent magnets need to know the optimum solution between price and quality. In the case of the aeronautical industry applications of the permanent magnets based on rare earths (RE), we need to know where is the best solution for our application and for that we make a comparison between the corrosion behaviour of different type of permanent magnets in various aggressive media. For the optimum performance of a permanent magnet in special devices must know the work conditions: pressure, temperature, vibration, demagnetizing field, other perturbation, and consequently their behavior in these conditions. The paper presents the evaluation of the corrosion behaviour of different permanent magnets or alloys, based on RE and transition metal (MT)..

Keywords

Corrosion, Nd-Fe-B magnets, Al-based additives, Ag-based additives.

Submitted at: Jan. 18, 2006
Accepted at: March 23, 2006

Citation

W. KAPPEL, M. M. CODESCU, N. STANCU, D. POPA, Evaluation of the corrosion behaviour for the permanent magnets based on rare earths, used in aeronautical industry, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 2, pp. 523-525 (2006)