Preparation, sintering, and properties of translucent Er sub 2 O sub 3 -doped tetragonal zirconia

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06036.x· OSTI ID:7225507

Duran, P; Recio, P; Jurado, J R; Pascual, C; Moure, C ^[1]

---

1. Electroceramics Dept., Instituto de Ceramica y Vidrio (CSIC), Arganda del Rey, Madrid (ES)

This paper reports on tetragonal zirconia doped with 3 mol% Er{sub 2}O{sub 3} prepared by the gel-precipitation wet-chemical method. The compaction response of ultrafine ({approximately} 8.5 nm), calcined, deagglomerated powders was studied. Initial sintering was studied using both isothermal and nonisothermal techniques, and an activation energy of 270 {plus minus} 40 kJ/mol was obtained; therefore, grain-boundary diffusion was probably the predominant mechanism in the sintering stage. The microstructural development in the high-temperature-aged, sintered samples and its effect on density and mechanical properties were also studied. A theoretically dense body of tetragonal zirconia solid solution of 3 mol% Er{sub 2}O{sub 3} {minus} ZrO{sub 2}, obtained from sintering below 1400{degrees}C, was translucent.

• OSTI ID: 7225507
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:11; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
CALCINATION
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTAL DOPING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DECOMPOSITION
DENSITY
DISPERSIONS
ERBIUM COMPOUNDS
ERBIUM OXIDES
FABRICATION
HIGH TEMPERATURE
ISOTHERMAL PROCESSES
MECHANICAL PROPERTIES
MICROSTRUCTURE
MIXTURES
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
PYROLYSIS
RARE EARTH COMPOUNDS
SINTERING
SOL-GEL PROCESS
SOLID SOLUTIONS
SOLUTIONS
TETRAGONAL LATTICES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES