Analysis of yttrium-barium-copper-oxide by x-ray diffraction and mechanical characterization
The efforts in developing high-temperature superconductor (HTSC) YBa2Cu3O7 electrical leads are to benefit future NASA missions that will carry payloads with sensitive instruments operating at cryogenic temperatures. Present-day leads made of copper or magnesium are responsible for as much as 50 percent of the parasitic heat load on cryogenic systems. A reduction of this load could be achieved by replacing the conventional materials with HTSC ceramic electrical leads. Superconductor quality has become a concern in the industry, as has the development of effective evaluation methods. The factors that need to be examined for these materials include material purity, mechanical properties, and superconducting ability below the critical temperature. We applied several methods to study these factors: thermogravimetric analysis, x-ray diffraction, tensile testing, and laser-generated ultrasound. Our objectives were to determine the average tensile strength and Young's modulus of the HTSC material and to compare them to those values for copper and manganin.
- Research Organization:
- National Aeronautics and Space Administration, Greenbelt, MD (United States). Goddard Space Flight Center
- OSTI ID:
- 7088672
- Report Number(s):
- N-92-26650; NASA-TM-104562; NAS-1.15:104562; REPT-92A01664
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BARIUM OXIDES
MECHANICAL PROPERTIES
SUPERCONDUCTIVITY
COPPER OXIDES
YTTRIUM OXIDES
CERAMICS
COMPARATIVE EVALUATIONS
COPPER
CRITICAL TEMPERATURE
ELASTICITY
ELECTRIC CONDUCTORS
HIGH-TC SUPERCONDUCTORS
MAGNESIUM
TENSILE PROPERTIES
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YOUNG MODULUS
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
BARIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL ANALYSIS
COHERENT SCATTERING
COPPER COMPOUNDS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EVALUATION
GRAVIMETRIC ANALYSIS
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
SUPERCONDUCTORS
THERMAL ANALYSIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM COMPOUNDS
360203* - Ceramics
Cermets
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360207 - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)