Erosion of composite ceramics

Conference · Sat Aug 01 04:00:00 EDT 1992

OSTI ID:10111550

Routbort, J L

The theoretical basis to describe solid-particle erosion of monolithic ceramics is well developed. In many cases, the models can account for the impact velocity, impact angle and erodent-size dependencies of the steady-state erosion rate. In addition, the models account for effects of materials parameters such as fracture toughness and hardness. Steady-state erosion measurements on a wide variety of composite ceramics, including SiC whisker-reinforced Al{sub 2}O{sub 3}, Si{sub 3}N{sub 4} containing Si{sub 3}N{sub 4} or SiC whiskers, Y{sub 2}O{sub 3}-stabilized ZrO{sub 2} reinforced with SiC whiskers, and duplex-microstructure Si{sub 3}N{sub 4} have been reported. The theories developed for monolithic ceramics are, however, less successful in describing the results for composites.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10111550
• Report Number(s): ANL/CP--75338; CONF-921147--1; ON: DE93004254
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360604
ALUMINIUM OXIDES
CERAMICS
COMPOSITE MATERIALS
CORROSION, EROSION, AND DEGRADATION
EROSION
REINFORCED MATERIALS
SILICON CARBIDES
SILICON NITRIDES
WHISKERS