Abstract
High Tc phase with c=3.7 nm of Bi2Sr2Ca2Cu3Ox was synthesized from powder prepared by Sol-Gel method. The sol was prepared from strontium acetate, calcium acetate, copper acetate and bismuth ethoxide.When powdering-sintering cycles were repeated four times with total sintering time of 148 h at 845°C-850°C, the amount of the high Tc phase in the specimen with starting composition ratio of 2:2:2.2:3.2, was larger than 95% from XRD measuerment. Tcoffset of the specimen was of 90K.From the sol descrived above, gel fibers with a length of 1 m and a diameter of 100 μm to 300 μm were successfully drown. After sintering at 845°C for 5 h, ceramic fiber of which Tconset, was of 110K were obtained.
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