Preparation and properties of highly densified yttrium-barium-copper oxide

In processing oxide superconductors it is important to obtain the highest possible density without having an adverse effect on the electric and magnetic properties of the material. This paper describes the effects of various processing parameters, including grain size, temperature, and gaseous envir...

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Bibliographic Details
Published in:Materials research bulletin 1988, Vol.23 (6), p.869-879
Main Authors: Hojaji, Hamid, Barkatt, Aaron, Hein, Robert A.
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Technical ceramics
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Summary:In processing oxide superconductors it is important to obtain the highest possible density without having an adverse effect on the electric and magnetic properties of the material. This paper describes the effects of various processing parameters, including grain size, temperature, and gaseous environment, on the density of yttrium-barium-copper oxide. Higher sintering temperatures and smaller grain size result in consistently higher product densities. It is shown that densities as high as 95% of the theoretical density can be reached without affecting the conductivity or the magnetic susceptibility profiles of the material.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(88)90081-5