ALUMINA RADOME ATTACHMENT
Abstract
Chemical attachment methods of bonding alumina ceramic to Mo TZM alloy were investigated prior to actual test specimen fabrication and evaluation. The investigation of precious metal braze alloys indicated that they would withstand temperatures to at least 2300 F for periods of 15 min without softening. Diffusion and alloying embrittlement of the Mo alloy by the braze alloys was definite, even at minimum brazing times; however, due to the eventual thickness of the Mo alloy, necessary for design strength, complete metal thickness embrittlement was not anticipated. Mo plasma sprayed coated alumina was evenly applied and resisted thermal cycling to the braze process temperature. A new method of bonding Mo to Mo by use of diffused Ni was investigated and initial tests indicated promise. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0271588
Entities
People
- Francis M. Wilson
- Robert A. Caughey
- Roger A. Long