Toughening of ceramics through alumina-based cemented oxide

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1988.tb00231.x· OSTI ID:5946186

Yang, M Y; Kohler, S P; Kramer, B M ^[1]

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1. Massachusetts Institute of Technology, Cambridge (USA)

The cemented structure of ceramic-metal composites is examined as a means of effective toughening in ceramics; Ni-TiC was identified as a favorable binder for Al{sub 2}O{sub 3}. A new process using plasma CVD was developed that could deposit TiC on fine Al{sub 2}O{sub 3} particles. The TiC-coated alumina powders were consolidated with nickel-based binders to produce the cemented structure. An indentation crack resistance test showed that TiC-coated alumina cermets impeded crack propagation effectively, improving substantially the toughness compared to conventionally processed alumina cermets.

• OSTI ID: 5946186
• Journal Information: Advanced Ceramic Materials; (USA), Journal Name: Advanced Ceramic Materials; (USA) Vol. 3:4; ISSN 0883-5551; ISSN ACEME
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BINDERS
BRITTLENESS
CARBIDES
CARBON COMPOUNDS
CERMETS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COMPOSITE MATERIALS
DATA
DEPOSITION
EXPERIMENTAL DATA
INFORMATION
MATERIALS
MECHANICAL PROPERTIES
NICKEL CARBIDES
NICKEL COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
SURFACE COATING
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS