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Critical currents in YBa2Cu3O7−x + Ag thick films

✍ Scribed by M.J Day; S.D Sutton; J.S Abell

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
568 KB
Volume
33
Category
Article
ISSN
0011-2275

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✦ Synopsis

The influence of various processing parameters on the critical currents obtained in YBCO + Ag composite thick films has been investigated. These include the use of several precursor YBCO inks produced by different calcination procedures, the effect of both processing temperature and cooling rate, and finally the effect of processing in oxygen and helium environments. Variation of these processing parameters has been found to make subtle changes to the microstructures obtained and considerable increases to critical transport current densities. Transport current data measured at 77 K in zero field imply -2

Jcs in excess of 3500 A cm

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