Research Papers

Refractory Metal Facings for Protection of Metal Surfaces Subjected to Repeated High-Temperature Pulses

[+] Author and Article Information
Aaron Cohen

Convair Astronautics, San Diego, Calif.

Edward Homer

Electron Tube Division, Radio Corporation of America, Harrison, N. J.

J. Basic Eng 81(2), 197-202 (Jun 01, 1959) (6 pages) doi:10.1115/1.4008418 History: Received September 02, 1958; Published June 01, 1959; Online February 20, 2019


Because the operating frequency of a magnetron has a direct relationship to the size of the resonant structure, the power at a given frequency that can be obtained from a magnetron may be limited by the temperature which the resonating structure can withstand. A rise in the temperature of the resonant structure is caused by the impact of high-energy electrons emitted from the cathode at high peak-power levels for short durations. This paper deals with the analytical determination of the temperature of the resonant structure, a solution to the heat problem in which a thin coating of refractory metal is used to prevent the vulnerable components from melting, and some experimental results to verify the analysis.

Copyright © 1959 by ASME
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