Influence of residual phases on the properties of YBa{sub 2}Cu{sub 3}O{sub 7{minus}x}
- Slovak Academy of Sciences, Kosice (Slovakia). Inst. of Experimental Physics
- Slovak Academy of Sciences, Kosice (Slovakia). Inst. of Materials Research
- Uzhorod State Univ. (Ukraine). Dept. of Physics of Semiconductors
The partial melting in YBaCuO incompletely synthesized powders occurring at temperatures below the peritectic decomposition of the 123 (YBa{sub 2}Cu{sub 3}O{sub 7{minus}x}) compounds is related to the presence of residual phases. The results showed that the final ceramic has got a high porosity, which is independent on the temperature of sintering, the double grain size distribution and two transition temperatures up to the sintering temperature 940 C as a consequence of a higher content of the residual carbonate. The sintering at higher-temperature improved superconducting properties of ceramics. This progress is connected with cracking of large grain ceramic and with the decomposition of carbonate BaCO{sub 3}.
- OSTI ID:
- 40262
- Report Number(s):
- CONF-930860-; ISSN 0018-9464; TRN: IM9520%%457
- Journal Information:
- IEEE Transactions on Magnetics, Vol. 30, Issue 2Pt2; Conference: EMMA `93: 5th European magnetic materials and applications conference, Kosice (Slovakia), 24-27 Aug 1993; Other Information: PBD: Mar 1994
- Country of Publication:
- United States
- Language:
- English
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