EVALUATION OF SHINGLE INSULATION FOR HIGH TEMPERATURE APPLICATIONS
Abstract
Thermal insulation for protecting airframe structures from aerodynamic and combustor heating is discussed. The objective is to obtain an insulation which can withstand thermal strains on the hot surface and also permit the use of brittle materials in such a way that the cold internal structure can deflect under load. Several test panels of stainless steel and one of aluminum oxide shingles were fabricated and their thermal conductivity determined. The results indicate that the system is competitive with others employing fibrous insulators which are limited to 2000 F service. Theoretical analysis of the heat transfer processes was made and this shows that at temperatures around 3000 to 5000 F, the shingle configuration would be considerably more efficient than solid materials such as zirconia and alumina. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1961
- Accession Number
- AD0256793
Entities
People
- M.l. Hill
Organizations
- Johns Hopkins University Applied Physics Laboratory