AC losses in HTSC conductor elements
1992
AC self-field losses and DC dynamic resistivity in HTSC conductor elements have been measured. The data are discussed with reference to the relevant theory. For two very different sample types, the J/sub c/ calculated on the basis of the AC self-field loss is about an order of magnitude lower than the J/sub c/ based on the 1- mu V/cm DC voltage drop criterion often used for HTSC materials. This is attributed to the onset of resistive behavior at currents much lower than the reported J/sub c/ based on the 1- mu V/cm criterion. The J/sub c/ determined from measurements of the dynamic resistivity of a melt-textured YBCO fiber is within 15% of that determined by magnetic measurements. >
Keywords:
- Electrical resistance and conductance
- Condensed matter physics
- Nuclear magnetic resonance
- Resistor
- Physics
- Alternating current
- Voltage drop
- Order of magnitude
- Electrical resistivity and conductivity
- Direct current
- Superconductivity
- dc voltage
- High-temperature superconductivity
- Fiber
- Resistive touchscreen
- Conductor
- Correction
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- Cite
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