Manufacturing Methods and Technology Measures for Arc-Plasma-Sprayed Phase-Shifter Elements.
Abstract
Seventy-eight plasma spray runs were made during this quarter. Half of these (39) were machined to phase-shifter dimensions and annealed before and after machining. Microwave testing was completed on 10 of these. For samples produced in the latter part of the quarter typical values of microwave phase shift are 370 deg - 420 deg, a considerable improvement over the previous quarter (approximately 300 deg) and above the contract specifications of 340 deg saturation phase shift. Insertion loss in these phase shifters in 0.6 - 1.5 dB within the range of the contract goal (1 dB). We attribute the improved performance to refinements in vendor machining to give uniform ferrite wall thickness and improvements in spray techniques which have reduced cracking, and the avoidance of distortions during spraying due to temperature and alignment problems. Development of an X-ray fluoroscopic technique for nondestructive sample analysis has been invaluable in sorting out the courses of poor magnetic properties in earlier samples. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA037238
Entities
People
- D. Masse
- H. J. Van Hook
- J. Saunders
Organizations
- RTX