Accession Number:

AD0256793

Title:

EVALUATION OF SHINGLE INSULATION FOR HIGH TEMPERATURE APPLICATIONS

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1961-02-01

Pagination or Media Count:

1.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE