Interference No. 103,141
Sawada also includes examples in the involved
application wherein the oxide powder in the cladding is first
sintered and the cross-section reduction occurs during or
after sintering. See examples 1 and 2 of Sawada’s
specification.
Counts 2 and 3 read as follows:
2. A method of producing an elongate
superconductive body, characterized in that the method
comprises
(a) forming an intermediate body comprising a
normal metal cladding surrounding a quantity of oxide powder
and in contact therewith;
(b) forming an elongate body from the intermediate
body by means of one or more cross-section-reducing
operations;
(c) forming at least one orifice through said metal
cladding; and
(d) heat treating the elongate body such that
substantial sintering of the oxide powder occurs, with the
oxide powder being in contact with an oxygen containing
atmosphere by passing oxygen through said at least one
orifice; with the oxygen concentration in the atmosphere such
that the thus produced body manifests superconductivity, with
T of 41 K or above, T being either T (R=0) or T (onset),c c c c
wherein at least the portion of the cladding that is
substantially inert with respect to oxygen and with respect to
the oxide powder under the treating conditions.
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