HOT ISOSTATIC PRESSING OF TIB2-ZRO2(2MOL-PERCENT Y2O3) COMPOSITE POWDERS

Authors
MURAOKA Y YOSHINAKA M HIROTA K YAMAGUCHI O
Citation
Y. Muraoka et al., HOT ISOSTATIC PRESSING OF TIB2-ZRO2(2MOL-PERCENT Y2O3) COMPOSITE POWDERS, Materials research bulletin, 31(7), 1996, pp. 787-792
Citations number
9
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
31
Issue
7
Year of publication
1996
Pages
787 - 792
Database
ISI
SICI code
0025-5408(1996)31:7<787:HIPOTY>2.0.ZU;2-J
Abstract
Dense sintered composites of TiB2 and ZrO2(2 mol% Y2O3) have been fabr icated by hot isostatic pressing for 2 h at 1500 degrees C under 196 M Pa. The ZrO2 particles in the composites consist of m- >> t-ZrO2. Ther e is no reaction between TiB2 and ZrO2. Microstructures and mechanical properties are examined, in connection with increased ZrO2 content. T he fracture toughness and bending strength of the composites with 30 m ol% ZrO2 content are 11.2 MPa . m(1/2) and 680 MPa, respectively.