Sol–gel synthesis of superconducting YBa2Cu4O8using acetate and tartrate precursors
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 4 (8) , 1267-1270
- https://doi.org/10.1039/jm9940401267
Abstract
A simple sol–gel route starting from an aqueous mixture of Y, Ba and Cu acetates and tartrates has been refined to prepare superconducting YBa2Cu4O8 at an oxygen pressure of 1 atm. Thermal decomposition of the fabricated gels was studied by means of thermogravimetry. In order to interpret the decomposition mechanisms, both individual and double gels of Y, Ba and Cu were studied. The synthesis products were characterized by X-ray diffraction for phase purity, by thermal analysis for oxygen stability and by SQUID measurements for superconducting properties.Keywords
This publication has 16 references indexed in Scilit:
- Sol‐gel processing of transition‐metal alkoxides for electronicsAdvanced Materials, 1993
- Preparation of superconducting YBa2Cu4O8 by the sol-gel methodJournal of Materials Research, 1992
- High purity synthesis of YBa2Cu4O8 at low oxygen pressureApplied Physics Letters, 1992
- Preparation of YBa2Cu3O7−x superconducting films through the sol-gel method using metal alkoxides as starting materialsJournal of Materials Research, 1992
- Highly oriented YBa2Cu4O8 films fabricated at atmospheric pressure by the sol–gel method using metal alkoxidesApplied Physics Letters, 1992
- Synthesis of a bulk YBa2Cu4O8 superconductor by addition of Ag2O at an ordinary pressure of oxygenApplied Physics Letters, 1991
- Influence of sol-gel methods on the superconducting YBa2Cu3O7-x phaseMaterials Research Bulletin, 1990
- Synthesis of bulk superconducting YBa2Cu4O8 at one atmosphere oxygen pressureNature, 1989
- Bulk synthesis of the 81-K superconductor YBa2Cu4O8 at high oxygen pressureNature, 1988
- Sol-gel chemistry of transition metal oxidesProgress in Solid State Chemistry, 1988