Protective coatings for columbium applied in the field.The various aspects of field repair of columbium alloy panels with protective coatings designed as part of the Space Shuttle thermal protection system are examined. The field repair of the coatings is accomplished by employing ceramic cement repairs, and reapplying the fused slurry silicide coating. Techniques are described which improve the practicality of these repairs by employing torch heating. The repair coating quality is demonstrated by testing which simulates flight temperature, pressure, stress and acoustic vibration conditions as a function of time. Conclusions on the present status of field repair coatings are presented and recommendations are given for appropriate future activities relative to the use on an operational Space Shuttle system.
Document ID
19720027092
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Carter, J. (NASA Marshall Space Flight Center Huntsville, Ala., United States)
Culp, J. (McDonnell Douglas Astronautics Co. St. Louis, Mo., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Subject Category
Materials, Nonmetallic
Meeting Information
Meeting: Space shuttle materials; Proceedings of the National Technical Conference