Mechanism of grain growth of [beta]-SiAlON

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb03953.x· OSTI ID:6212300

Einarsrud, M; Mitomo, M ^[1]

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1. National Inst. for Research in Inorganic Materials, Ibaraki (Japan)

The mechanism for grain growth of [beta]-SiAlON has been investigated by annealing high-density [beta]-SiAlON-YAG materials at 1,650 C. An observed decrease in grain growth with increasing weight fraction of liquid confirms a diffusion-controlled growth mechanism in the system. The grain-growth mechanism is further characterized by the development of large elongated grains in addition to smaller grains. After prolonged heating, an equilibrium maximum grain size is developed causing a homogenization of the microstructure.

• OSTI ID: 6212300
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 76:6; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANNEALING
CERAMICS
CHALCOGENIDES
CRYSTAL STRUCTURE
DATA
ELONGATION
EXPERIMENTAL DATA
GRAIN GROWTH
HEAT TREATMENTS
HEATING
INFORMATION
MICROSTRUCTURE
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SILICON COMPOUNDS
SILICON NITRIDES