Physics – Condensed Matter – Superconductivity
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990amsa.nasa...65s&link_type=abstract
In NASA, Goddard Space Flight Center, AMSAHTS 1990: Advances in Materials Science and Applications of High Temperature Supercond
Physics
Condensed Matter
Superconductivity
High Temperature Superconductors, Magnetic Properties, Microwave Equipment, Superconductivity, Yttrium, Cryogenics, Flux Pinning, Insertion Loss, Magnetic Energy Storage, Magnetoplasmadynamics, Plasma Propulsion, Q Factors, Refractory Materials, Spacecraft Construction Materials, Temperature Effects
Scientific paper
It has been recognized from the onset that high temperature superconductivity held great promise for major advances across a broad range of NASA interests. The current effort is organized around four key areas: communications and data, sensors and cryogenics, propulsion and power, and space materials technology. Recently, laser ablated YBa2Cu3O(7-x) films on LaAIO produced far superior RF characteristics when compared to metallic films on the same substrate. This achievement has enabled a number of unique microwave device applications, such as low insertion loss phase shifters and high Q filters. Melt texturing and melt quenched techniques are being used to produce bulk materials with optimized magnetic properties. These yttrium enriched materials possess enhanced flux pinning characteristics and will lead to prototype cryocooler bearings. Significant progress has also occurred in bolometer and current lead technology. Studies are being conducted to evaluate the effect of high temperature superconducting materials on the performance and life of high power magneto-plasma-dynamic thrusters. Extended studies were also performed to evaluate the benefit of superconducting magnetic energy storage for LEO space station, lunar and Mars mission applications. The project direction and level of effort of the program are also described.
Romanofsky Robert R.
Sokoloski Martin M.
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