Solid-particle erosion of an Al{sub 2}O{sub 3}-SiC-TiC composite

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An electrodischarge-machinable Al{sub 2}O{sub 3}-SiC-TiC composite developed by Industrial Ceramic Technology, Inc., has a high fracture toughness, 9.6{+-}0.6 MPm{sup 1/2}, as measured by indentation, and a Vickers hardness of 20.3{+-}0.6 GPa. The composite`s resistance to solid-particle erosion was measured for 143-{mu}m dia SiC particles impacting at 20-90{degree} angles and 50-100 m/s velocities. Erosion rate exhibited a maximum for normal incidence, and the erosion resistance was better than that of commercial Al{sub 2}O{sub 3}. SEM indicated that material wastage was by a combination of brittle fracture and microplasticity.

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9 p.

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Jiang, M.; Goretta, K.C.; Singh, D.; Routbort, J.L. & Schuldies, J.J. November 1, 1996.

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Description

An electrodischarge-machinable Al{sub 2}O{sub 3}-SiC-TiC composite developed by Industrial Ceramic Technology, Inc., has a high fracture toughness, 9.6{+-}0.6 MPm{sup 1/2}, as measured by indentation, and a Vickers hardness of 20.3{+-}0.6 GPa. The composite`s resistance to solid-particle erosion was measured for 143-{mu}m dia SiC particles impacting at 20-90{degree} angles and 50-100 m/s velocities. Erosion rate exhibited a maximum for normal incidence, and the erosion resistance was better than that of commercial Al{sub 2}O{sub 3}. SEM indicated that material wastage was by a combination of brittle fracture and microplasticity.

Physical Description

9 p.

Notes

OSTI as DE97001989

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  • 21. annual conference and expo on composites, advanced cermics, materials and structures, Cocoa Beach, FL (United States), 12-16 Jan 1997

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  • Other: DE97001989
  • Report No.: ANL/ET/CP--90596
  • Report No.: CONF-970111--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 437761
  • Archival Resource Key: ark:/67531/metadc675806

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  • November 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Aug. 4, 2016, 6:38 p.m.

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Jiang, M.; Goretta, K.C.; Singh, D.; Routbort, J.L. & Schuldies, J.J. Solid-particle erosion of an Al{sub 2}O{sub 3}-SiC-TiC composite, article, November 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc675806/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.