Appeal No. 98-2457
Application No. 08/851,312
Claims
28. A process for manufacturing a superconducting
elongated article including the steps of:
filling a metal pipe with material powder of a
superconducting compound oxide;
subjecting the metal pipe filled with the material powder
first to cold-plastic deformation and then to hot-plastic
deformation to reduce the cross section of the metal pipe;
sintering the material powder filled in the metal pipe;
and then
controlling the cooling of the resulting metal pipe
containing sintered ceramic material powder to a rate of less
than 50EC/min.
40. A process for manufacturing s [sic,a]
superconducting elongated article [sic] the steps of:
filling material powder of a superconducting compound
oxide into a metal pipe made of at least one [sic] selected
from the group consisting of Ag, Au, Pt, Pd, Rh, Ir, Ru, Os,
Cu, Al, Fe, Ni, Cr, Ti, Mo, W and Ta or alloys including these
metals as the base;
subjecting the metal pipe filled with the material powder
to hot-plastic deformation [sic] reduce the cross section of
the metal pipe to such extent that the cross section of the
metal pipe is reduced at a dimensional reduction ratio ranging
from 16% to 92% under a heated condition, so that the material
powder filled in the metal pipe is sintered; and then
cooling the resulting metal pipe containing sintered
ceramic material powder therein slowly at a rate of a less
than 50EC/min.
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