Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Donald A. Jaworske"'
Autor:
Taylor Raack, Donald A. Jaworske
Publikováno v:
Thin Solid Films. :24-30
Cermet coatings, molecular mixtures of metal and ceramic, are being considered for the heat inlet surface of a solar Stirling space power convertor. The role of the cermet coating is to absorb as much of the incident solar energy as possible. The abi
Autor:
Anthony J. Colozza, Bryan A. Palaszewski, Donald A. Jaworske, Michael J. Kulis, Geoffrey A. Landis, Aloysius F. Hepp
Publikováno v:
12th International Energy Conversion Engineering Conference.
Publikováno v:
55th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
Solar concentrators are envisioned for use in a variety of space-based applications, including applications involving in situ resource utilization. Identifying solar concentrators that minimize mass and cost are of great interest, especially since la
Autor:
Donald A. Jaworske
Publikováno v:
Thin Solid Films. 332:30-33
Thermal control coatings on spacecraft will be increasingly important, as spacecraft grow smaller and more compact. New thermal control coatings will be needed to meet the demanding requirements of next generation spacecraft. Computer programs are no
Autor:
M. K. Ram, J. S. McNatt, Conrad Jones, Donald A. Jaworske, A. F. Heep, Innocent Udom, Michael J. Kulis, Elias K. Stefanakos, D. Y. Goswami
Publikováno v:
51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
The effect of transition metal co-catalysts on the photocatalytic properties of TiO2 was investigated. Ruthenium (Ru), palladium, platinum, copper, silver, and gold, were loaded onto TiO2 powders (anatase and mixed-phase P25) and screened for the dec
Autor:
Donald A. Jaworske
Publikováno v:
Thin Solid Films. :278-282
The hemispherical total emissivity of two thermal control coatings, Z-93-P and black anodized aluminum, was calculated from hemispherical total reflectivity measured in the wavelength range of 2 to 40 μm. These data were compared to hemispherical to
Publikováno v:
10th International Energy Conversion Engineering Conference.
Titanium-water thermosyphons are being considered for use in heat rejection systems for fission power systems. Their proximity to the nuclear reactor will result in some gamma irradiation. Noncondensable gas formation from radiation-induced breakdown
Autor:
Kerry J. Rogers, Gregory W. Clark, Sammantha Baldwin, James R. Gaier, John Bruce, Tsega Mengesu, Brittany Batman, Angela D. Folz, Donald A. Jaworske, Deborah L. Waters, Terry R. McCue
Publikováno v:
42nd International Conference on Environmental Systems.
Six samples of pristine and dust-abraded outer layer spacesuit fabrics were included in the Materials International Space Station Experiment-7, in which they were exposed to the wake-side low Earth orbit environment on the International Space Station
Autor:
Donald A. Jaworske
Publikováno v:
Thin Solid Films. 253:233-237
Thermal control surfaces are used in every spacecraft thermal management system to dissipate heat through radiant heat transfer. This paper describes the thermal performance of several thermal control paints, coatings, and surfaces, as characterized
Publikováno v:
Journal of the IEST. 37:26-31
Pinholes or other defect sites in a protective oxide coating provide pathways for atomic oxygen in low-Earth orbit to reach underlying material. Onc concept for enhancing the lifetime of materials in low-Earth orbit is to apply a leveling coating to