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Author Muraoka, Yoshiyuki ♦ Yoshinaka, Masaru ♦ Hirota, Ken ♦ Yamaguchi, Osamu
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ COMPOSITE MATERIALS ♦ HOT PRESSING ♦ MICROSTRUCTURE ♦ MECHANICAL PROPERTIES ♦ TITANIUM BORIDES ♦ ZIRCONIUM OXIDES ♦ YTTRIUM OXIDES ♦ INTERMETALLIC COMPOUNDS ♦ PARTICLE SIZE ♦ CHEMICAL COMPOSITION ♦ BULK DENSITY ♦ X-RAY DIFFRACTION ♦ SCANNING ELECTRON MICROSCOPY ♦ HARDNESS ♦ FRACTURE PROPERTIES ♦ FLEXURAL STRENGTH
Abstract Dense sintered composites of TiB{sub 2} and ZrO{sub 2}(2 mol% Y{sub 2}O{sub 3}) have been fabricated by hot isostatic pressing for 2 h at 1,500 C under 196 MPa. The ZrO{sub 2} particles in the composites consist of m- {much_gt} t-ZrO{sub 2}. There is no reaction between TiB{sub 2} and ZrO{sub 2}. Microstructures and mechanical properties are examined, in connection with increased ZrO{sub 2} content. The fracture toughness and bending strength of the composites with 30 mol% ZrO{sub 2} content are 11.2 MPa{center_dot}m{sup 1/2} and 680 MPa, respectively.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-07-01
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 31
Issue Number 7


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