Accession Number:

AD0271588

Title:

ALUMINA RADOME ATTACHMENT

Descriptive Note:

Corporate Author:

WHITTAKER CORP SAN DIEGO CALIF NARMCO RESEARCH AND DEVELOPMENT DIV

Report Date:

1962-01-01

Pagination or Media Count:

1.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE