2000f Power Wire for Aerospace Environment

摘要

A brazing study was undertaken to produce reliable end seals for power wire systems. The best results were obtained with 99.5 percent dense alumina end plugs, vacuum brazed under controlled heating, cooling, and cleaning conditions. Studies of the breakdown during the 2000F 1200v test showed that breakdown occured over the surface of the ceramic. Small modifications of the present end seal configuration using materials already on hand show promise of overcoming this difficulty. (Author)