INVESTIGATING ELECTROEROSIONAL PHENOMENA ON THE SURFACE OF A TWO-LAYERED ELECTRODE,
Abstract
Bimetal electrodes Cu-Sn and Sn-Bi were prepared and used as anodes vs. a conical Fe cathode during sq. pulse discharges (900 A at 240 Mu sec) in kerosene. The Cu-Sn layers were perpendicular, while Sn-Bi were parallel to the axis of the discharge. After a series of discharges, erosion was determined by the weight loss method, and the discharge area observed with a microscope. The erosion values of the 2-layer electrode and the Fe cathode were plotted vs. the thickness of the Cu layer. The erosion of both electrodes decreased when the thickness of the Cu layer increased within the range 0.02-1 mm. A similar relation was observed between the area of erosion and Cu thickness. The exponential results were analyzed on the basis of the migration theory for the mechanism of electric erosion. The derived equations defining erosion losses of 2-layer electrodes are in agreement with exponential data. A linear relation exists between the erosion losses of Bi and Sn when the 2 layers are parallel to the discharge axis. The good agreement between the exigencies of the migration theory and exponential results in both cases offers a possibility for evaluating erosion under different conditions. The theoretical conceptions can be very helpful for the practical estimation of plasma electric discharges between metal electrodes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1969
- Accession Number
- AD0698539
Entities
People
- I. A. Bakuto
- I. G. Nekrashevich
Organizations
- National Air and Space Intelligence Center