Highly oriented structure of hot-extruded Tl2Ba2Ca2Cu3 oxides prepared from MG powders

The effect of mechanical grinding (MG) on the microstructure of hot-extruded Tl2Ba2Ca2Cu3Oy wires with an Ag sheath was examined and the possibility of fabricating an oriented structure investigated. Fine Tl2Ba2Ca2Cu3Oy powders with a particle size below 1 micron were obtained by MG. By using the fi...

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Bibliographic Details
Published in:Journal of materials science letters 1997-02, Vol.16 (4), p.290-293
Main Authors: MATUZAKI, K, SHIMIZU, K, INOUE, A, MASUMOTO, T
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
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Summary:The effect of mechanical grinding (MG) on the microstructure of hot-extruded Tl2Ba2Ca2Cu3Oy wires with an Ag sheath was examined and the possibility of fabricating an oriented structure investigated. Fine Tl2Ba2Ca2Cu3Oy powders with a particle size below 1 micron were obtained by MG. By using the fine MG powders, workability is improved and an oriented structure can be obtained with c plane parallel to wire direction in the hot-extrusion process. Consequently, the MG treatment is concluded to be useful for the preparation of Tl2Ba2Ca2Cu3Oy wire with oriented structure by hot-@close@ extrusion. 5 refs.
ISSN:0261-8028
DOI:10.1023/A:1018501118167