Investigation of ZrO/sub 2//mullite solid solution by energy dispersive X-ray spectroscopy and electron diffraction
Journal Article
·
· Acta Metall.; (United States)
A mullite/15 vol.%ZrO/sub 2/ composite was analyzed using the techniques of microdiffraction and energy dispersive X-ray spectroscopy (EDXS). The EDXS results indicate that there is a significantly high solid solubility of mullite in zirconia and zirconia in mullite; microdiffraction results suggest that ordering occurs in the ZrO/sub 2/(ss) phase based on the presence of forbidden reflections for the P 2/sub 1//c space group of monoclinic zirconia. The presence of a secondary phase at the grain boundaries, either amorphous or crystalline, has not been generally detected throughout the bulk. The results provide experimental evidence for the hypothesis of Moya and Osendi that the increased toughness and flexural strength of these composites are related to solid solution effects rather than to transformation or microcrack toughening mechanisms.
- Research Organization:
- Lawrence Berkeley Lab., Univ. of California Berkeley, Berkeley, CA
- OSTI ID:
- 6013519
- Journal Information:
- Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 32:10; ISSN AMETA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Toughening mechanisms in mullite/zirconia composites
Preparation and properties of zirconia-toughened mullite ceramics
Influence of the ZrO[sub 2] grain size and content on the transformation response in the Al[sub 2]O[sub 3]-ZrO[sub 2] (12 mol% CeO[sub 2]) system
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1987
·
OSTI ID:7004729
Preparation and properties of zirconia-toughened mullite ceramics
Journal Article
·
Fri Feb 28 23:00:00 EST 1986
· J. Am. Ceram. Soc.; (United States)
·
OSTI ID:5850850
Influence of the ZrO[sub 2] grain size and content on the transformation response in the Al[sub 2]O[sub 3]-ZrO[sub 2] (12 mol% CeO[sub 2]) system
Journal Article
·
Sun Feb 28 23:00:00 EST 1993
· Journal of the American Ceramic Society; (United States)
·
OSTI ID:6050536
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
AMORPHOUS STATE
CHALCOGENIDES
COHERENT SCATTERING
COMPOSITE MATERIALS
CRACKS
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALLOGRAPHY
CRYSTALS
DIFFRACTION
DISPERSIONS
ELECTRON DIFFRACTION
FLEXIBILITY
FRACTOGRAPHY
GRAIN BOUNDARIES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
MINERALS
MIXTURES
MULLITE
ORDER-DISORDER TRANSFORMATIONS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHASE TRANSFORMATIONS
REFLECTION
SCATTERING
SOLID SOLUTIONS
SOLUTIONS
SPECTROSCOPY
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
X-RAY SPECTROSCOPY
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
AMORPHOUS STATE
CHALCOGENIDES
COHERENT SCATTERING
COMPOSITE MATERIALS
CRACKS
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALLOGRAPHY
CRYSTALS
DIFFRACTION
DISPERSIONS
ELECTRON DIFFRACTION
FLEXIBILITY
FRACTOGRAPHY
GRAIN BOUNDARIES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
MINERALS
MIXTURES
MULLITE
ORDER-DISORDER TRANSFORMATIONS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHASE TRANSFORMATIONS
REFLECTION
SCATTERING
SOLID SOLUTIONS
SOLUTIONS
SPECTROSCOPY
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
X-RAY SPECTROSCOPY
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES