Properties of Superconducting YBa2Cu3O6+4 Ceramic Materials: Effect of Processing Parameters
NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTURES AND MATERIALS DIRECTORATE
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The effect of the sintering temperature, the sintering time and the addition of 5 wt. silver on the average particle size, bulk density and the superconducting zero resistance temperature Tc YBa2CU306x ceramic materials was investigated a in the range 880 - 940 deg C for 2 hours and b at 920 deg C for different times in the range 0-10 hours. The results suggest that while the density and particle size of the sintered ceramic increases with an increase of the sintering temperature and 2 hours of sintering, prolonged sintering at 9200C above 4 hours of duration does not improve above properties. However, the superconducting zero resistance temperature Tc does not change significantly. In the presence of 5 wt. silver, it appears that both sintering temperature and duration of sintering significantly improves the bulk density, particle size and Tc of YBa2CU30r6x.... Morphology, Superconductivity, Sintering, Temperature, Time.
- Ceramics, Refractories and Glass
- Fabrication Metallurgy
- Electricity and Magnetism