Fracture toughness and solid-particle erosion of ceramic-matrix whisker-reinforced composites

Conference · Thu Feb 01 00:00:00 EST 1990

OSTI ID:7171163

Routbort, J L; Goretta, K C; Chu, C -Y; Singh, J P

Fracture toughness and solid-particle erosion resistance of several ceramic whisker-reinforced ceramic matrix composites have been measured. Systems include Al{sub 2}O{sub 3} {plus} SiC(w), Si{sub 3}N{sub 4} {plus} Si{sub 3}N{sub 4}(w), Si{sub 3}N{sub 4} {plus} SiC(w) and Y{sub 2}O{sub 3}-stabilized ZrO{sub 2} {plus} Al{sub 2}O{sub 3}(w). Erosion has been investigated at room temperature for erodents of varying hardness, impact angles between 15 and 90{degrees}, and velocities from 40 to 150 m/s. Results indicate that some toughening mechanisms are beneficial, whereas others are detrimental, to erosion resistance. Fabrication of the composites plays an important role in the erosion resistance.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7171163
• Report Number(s): CONF-900513-1; ON: DE90009713
• Resource Relation: Conference: Conference on the tribology of composite materials, Oak Ridge, TN (USA), 1-3 May 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
FRACTURE PROPERTIES
COMPOSITE MATERIALS
EROSION
SILICON CARBIDES
SILICON NITRIDES
YTTRIUM OXIDES
ZIRCONIUM OXIDES
CRACKS
PARTICLE SIZE
REINFORCED MATERIALS
WHISKERS
ALUMINIUM COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CRYSTALS
MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SILICON COMPOUNDS
SIZE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
360603* - Materials- Properties
360604 - Materials- Corrosion
Erosion
& Degradation