Citation

Abstract

Ford Aerospace (under contract with the Jet Propulsion Laboratory) completed a preliminary investigation on intermodulation product (IMP) levels of fiberglass-backed flame-sprayed surfaces. The purpose was to demonstrate the use of modified techniques and materials in combustion flame spraying of formed surfaces in reducing intermodulation products. The approach used improved metal wire stock without impurities or with smaller droplet sizes, used new high-temperature release agents, used wire stock with lower electrical resistance, and used variations in spraying distances, and intense buffing processes which amalgamate the material gaps and droplets in an effort to fabricate IMP-free light-weight and. low-cost subreflectors. The study revealed positive material candidates with an IMP level around ~-150 dB, which is comparable to solid aluminum surfaces used as a reference.

Details

Volume
42-78
Published
August 15, 1984
Pages
79–98
File Size
1.1 MB