Published August 1988 | Version v1
Journal article Metadata-only

Microstructural characterization and fracture toughness of cordierite-ZrO/sub 2/ glass-ceramics

Creators

  • 1. Dept. of Materials Science and Engineering, Case Western Reserve Univ., Cleveland, OH (USA)
  • 2. Dept. of Ceramic Engineering, The Ohio State Univ., Columbus, OH (USA)

Description

Crystallization of an MgO-Al/sub 2/O/sub 3/-SiO/sub 2/-ZrO/sub 2/ sintered glass frit was studied. Heat treatment at 8500 or 9000C caused initial crystallization of μ-cordierite and tetragonal (t) ZrO/sub 2/. The t-ZrO/sub 2/ crystallized with an irregular dendritic morphology and could be transformed to monoclinic (m) symmetry under certain conditions; the cordierite underwent the μ → α transformation with extended annealing. Heat treatments at 10000C caused crystallization of t-ZrO/sub 2/ rods and spheroids in a cordierite matrix; these ZrO/sub 2/ crystals, however, are resistant to transformation to m-ZrO/sub 2/. The beneficial effects of ZrO/sub 2/ on the fracture toughness of cordierite-based glass-ceramic are described

Additional details

Publishing Information

Journal Title
Journal of the American Ceramic Society
Journal Volume
71
Journal Issue
8
Series
J. Am. Ceram. Soc.
Journal Page Range
673-677
ISSN
0002-7820
CODEN
JACTA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20055627
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM OXIDES; CHEMICAL COMPOSITION; CRYSTALLIZATION; FRACTURE PROPERTIES; GLASS; HIGH TEMPERATURE; MAGNESIUM OXIDES; MICROSTRUCTURE; PHASE TRANSFORMATIONS; SILICON OXIDES; SINTERING; ZIRCONIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; FABRICATION; MAGNESIUM COMPOUNDS; MECHANICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS