Synthesis and colloidal processing of nanocrystalline (Y{sub 2}O{sub 3}-stabilized) ZrO{sub 2} powders by a surface free energy controlled process

Conference · Fri Aug 01 00:00:00 EDT 1997

OSTI ID:500996

Burgard, D; Nass, R; Schmidt, H ^[1]

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1. Inst. fuer Neue Materialien, Saarbruecken (Germany)

Using the controlled growth technique, nanocrystalline ZrO{sub 2} powders have been prepared from solution. By variation of the Y-content (0--8 mol%), redispersable monoclinic, tetragonal or cubic ZrO{sub 2} powders with particle sizes between 5 and 10 nm were obtained after crystallization at elevated temperature and pressure. Nanodisperse suspensions of the powders have been used for colloidal processing techniques such as tape casting, slip casting or extrusion. The resulting green bodies with densities of 55% and average pore sizes of 5 nm could be sintered at temperatures below 1,100 C leading to monoclinic, tetragonal or cubic ZrO{sub 2} ceramics.

• OSTI ID: 500996
• Report Number(s): CONF-960401-; ISBN 1-55899-335-5; TRN: 97:012716
• Resource Relation: Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 8-12 Apr 1996; Other Information: PBD: 1997; Related Information: Is Part Of Aqueous chemistry and geochemistry of oxides, oxyhydroxides, and related materials; Voigt, J.A. [ed.] [Sandia National Labs., Albuquerque, NM (United States)]; Wood, T.E. [ed.] [3M Co., St. Paul, MN (United States)]; Bunker, B.C. [ed.] [Pacific Northwest Lab., Richland, WA (United States)]; Casey, W.H. [ed.] [Univ. of California, Davis, CA (United States)]; Crossey, L.J. [ed.] [Univ. of New Mexico, Albuquerque, NM (United States)]; PB: 384 p.; Materials Research Society symposium proceedings, Volume 432
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ZIRCONIUM OXIDES
SYNTHESIS
YTTRIUM OXIDES
CONCENTRATION RATIO
CRYSTAL STRUCTURE
PARTICLE SIZE
BULK DENSITY
CASTINGS
MICROSTRUCTURE