Ceramic fibers from Sol-Gel precursors
- Fraunhofer Institut fuer Silicatforschung, Wuerzburg (Germany)
Powderless methods for the preparation of continuously spirmable alumina, mullite, spinel, yttrium alumina garnet (YAG) and lead zirconium titanate (PZT) precursors are presented. The Al containing solutions are based on alcoholysis, carboxylation and hydrolysis reactions, which are described in detail. In addition, a synthesis route for the preparation of piezoelectric PZT long fibers has also been developed. This novel PZT precursor contains lead subcarboxylate and zirconium titanium oxohydroxocarboxylate. In all cases, continuously spinnable precursors which have been extruded with velocities up to 200 m/min, have been obtained. Gel fibers of several kilometer length could be drawn directly from sols. After drying, pyrolysis and sintering, each of the {alpha}-Al{sub 2}O{sub 3}, mullite. spinel, YAG and PZT, fibers have been obtained.
- OSTI ID:
- 99199
- Report Number(s):
- CONF-940911-; TRN: 95:005310-0089
- Resource Relation:
- Conference: 5. international conference on ceramic processing science and technology, Friedrichshafen (Germany), 11-14 Sep 1994; Other Information: PBD: 1995; Related Information: Is Part Of Ceramic transactions: Ceramic processing science and technology. Volume 51; Hausner, H.; Messing, G.L.; Hirano, Shin-ichi [eds.]; PB: 835 p.
- Country of Publication:
- United States
- Language:
- English
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