Mechanical properties of hot-pressed TiB2-ZrO2 composites

Journal Article · Fri Feb 01 04:00:00 EST 1985 · J. Am. Ceram. Soc.; (United States)

OSTI ID:5495273

Watanabe, T; Shoubu, K

Experimentation with the use of monoclinic ZrO2 as an additive in TiB2-based composites, in order to improve mechanical properties without the use of stabilizers, has led to the identification of the TiB2 30 percent ZrO2 composition whose compacts exhibit low porosity, and 800 MN/sq m transverse rupture strength, and K(Ic) of 5 MPa m exp 1/2. It is speculated that the high strength and toughness obtained are primarily due to the presence of partially stabilized tetragonal ZrO2, as well as to a (TiZr)B2 solid solution which forms during sintering.

• Research Organization: Government Industrial Research Institute, Saga, Japan
• OSTI ID: 5495273
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 68; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
ADDITIVES
BACKSCATTERING
BORIDES
BORON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
FABRICATION
HARDNESS
HOT PRESSING
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
PRESSING
SCATTERING
SINTERING
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES