Erosion of ceramic composites by various erodents

Conference · Fri Dec 01 04:00:00 EST 1989

OSTI ID:5147473

Routbort, J L; Chu, C -Y; Roberts, J M; Singh, J P; Wu, W; Goretta, K C

Solid-particle erosion has been measured in several ceramic matrix whisker-reinforced composites: Al{sub 2}O{sub 3}+SiC(w), Si{sub 3}N{sub 4}+Si{sub 3}N{sub 4}(w) and 3 mol % Y{sub 2}O{sub 3}-stabilized zirconia+Al{sub 2}O{sub 3}(w). The steady-state erosion rate was investigated for normal incidence with an impact velocity of 100 m/s using four types of erodents with varying hardness. Steady-state erosion rate depends on the type of erodent, with the rate being fastest for the hardest particles. Whisker reinforcement of the ceramic matrix increases the fracture toughness, but does not, in all cases, increase the erosion resistance. Microstructural details also play an important role in determination of erosion resistance. 14 refs., 6 figs., 1 tab.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5147473
• Report Number(s): CONF-900107-1; ON: DE90005650
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
CRYSTALS
EROSION
HARDNESS
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
MONOCRYSTALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
TRANSITION ELEMENT COMPOUNDS
WHISKERS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES