Solid-particle erosion of in-situ reinforced Si[sub 3]Ni[sub 4]
- Argonne National Lab., IL (United States)
- Allied-Signal, Inc., Morristown, NJ (United States)
- Allied-Signal, Inc., Des Plaines, IL (United States)
Steady-state solid-particle erosion has been investigated on in-situ reinforced Si[sub 3]N[sub 4] and the equivalent'' fine-grained hot-isostatically-pressed Si[sub 3]N[sub 4] whose R-curve behaviors are quite different, having K[sub IC] values in the long-crack-limit of 8.3 and 5.6 MPa m[sup [1/2]], respectively. Experiments were carried out at 20[degrees]C, using SiC abrasives, whose diameters ranged from 42 to 1035 [mu]m, varying the angle of impact from 15 to 90[degrees] and the velocity from 50 to 100 to 150 m/s. The erosion rates of the two materials were, within a factor of two, the same, indicating that the long-crack-length-limit toughness is not an indication of erosion resistance, for the range of particle sizes and velocities studied.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 7001650
- Report Number(s):
- ANL/CP-75205; CONF-930414-1; ON: DE92014868
- Resource Relation:
- Conference: 9. international conference of wear of materials, San Francisco, CA (United States), 13-17 Apr 1993
- Country of Publication:
- United States
- Language:
- English
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