DETERMINATION OF THE EMISSIVITY OF MATERIALS. Quarterly Progress Report, July 1-September 30, 1962
Work was continued in support of NASA space power systems. An aluminum phosphate-bonded mixture of nickel-chrome spinel and silicon dioxide completed 8650 hr of endurance testing on a SNAP-8 fimed-tube radiator segment. Flame- sprayed coatings of titania on SNAP-8 and Sunflower I sections completed 7810 hr and 7760 hr, respectively. A fourth rig containing a SNAP-8 section with an aluminum phosphate-bonded mixture of silicon carbide and silicon dioxide completed 6530 hr of testing. Emittance measurements were made on ten materials and on the substrate material, niobium-1% zirconium alloy. The ten materials tested included zirconium silicate, magnesium aluminate, chromic oxide, ceric oxide, titania, barium titanate, calcium titanate, strontium titanate, irontitanum-aluminum oxide, and iron-titanium oxide. Measurement of both total hemispherical and spectral normal emittances were made for all materials except ceric oxide and iron titanium oxide. Two different bonding methods were used for chromic oxide and calcium titanate and three different methods were used for zirconium silicate. One zirconium silicate coating was bonded to type 310 stainless steel rather than niobium-1% zirconium to determine the influence on coating emittance of the type substrate used. Specimens of zirconium silicate and irontitanium oxide were endurance tested. (auth)
- Research Organization:
- Pratt and Whitney Aircraft Div., United Aircraft Corp., Hartford, Conn.
- DOE Contract Number:
- NASW-104
- NSA Number:
- NSA-17-006675
- OSTI ID:
- 4750306
- Report Number(s):
- PWA-2128
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
Similar Records
DETERMINATION OF THE EMISSIVITY OF MATERIALS. Progress Report, October 1 through December 31, 1961
DETERMINATION OF THE EMISSIVITY OF MATERALS. Progress Report, January 1 through June 30, 1963
Related Subjects
ALUMINUM OXIDES
ALUMINUM PHOSPHATES
BARIUM OXIDES
BONDING
BUILDING MATERIALS
CALCIUM OXIDES
CERIUM OXIDES
CHROMIUM OXIDES
CHROMIUM SILICATES
COATING
COMBUSTION
EMISSION
IRON OXIDES
MAGNESIUM OXIDES
MATERIALS TESTING
MEASURED VALUES
MOTORS
NICKEL SILICATES
NIOBIUM ALLOYS
PROPULSION
REACTORS
SILICON CARBIDES
SILICON OXIDES
SNAP-8 SERIES
SPACE VEHICLES
SPECTRA
SPUTTERING
STAINLESS STEELS
STRONTIUM OXIDES
TITANIUM OXIDES
ZIRCONIUM ALLOYS
ZIRCONIUM SILICATES