This thesis describes the development of the
fabrication process of YBa2Cu3O7-x High Temperature Superconductor
(HTSC-123). First, HTSC-123 is prepared by mixing Y2O3, BaCO3
and CuO powder with the ratio of Y:Ba:Cu equal to 1 : 2:3. This
fabrication process is then used as the standard process for
preparation of HTSC which will be employed in applications.
HTSC-123 exhibited Meissner effect, Zero resistance and Silsbee
effect with 92 K critical temperature. Additionally, the preparation
of HTSC-123 from Nitrate compound and ready mixed commercial
product 1230G compound are experimented by using this stanard
process. HTSC-123 that preparated from standard process have
following properties oxigen 6.7-6.9 Atom, and majority carries
are holes. In examining the magnetic effect of HTSC-123, the
measurement of current-voltage characteristics, and the voltage
drop across the superconducting sample is observed when applying
and external magnetic field. The voltage drop increases with
an increasing field in magnetic flux. In addition, high magnetic
flux can produce an electromagnetic memory phenomenon in HTSC-123
and demonstrate magnetic pole of weak magnet. A hypothesis of
ceramic superconductor macrostructure model in order to explain
its properties is presented.
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