Double fracture model in lapping of ceramics
- Kansas State Univ., Manhattan, KS (United States)
Lapping experiments were performed on aluminum oxide ceramic material with abrasives of three different sizes. Workpieces were lapped with all three abrasives, in descending order of size, for 60 minutes. Surface finish and material removal was measured after each lap segment of 15 minutes. Further tests used the two smaller size abrasives to highlight the surface finish performance with respect to time. The results indicate that, during lapping with the 30-40 micrometer and 10-20 micrometer abrasive size, material removal is through the brittle fracture mode. With the 2-4 micrometer grit, material removal appeared to occur in the transition regime between brittle to ductile mode. With lapping longer than 45 minutes, material removal is primarily through plastic deformation.
- OSTI ID:
- 471994
- Report Number(s):
- CONF-960677--
- Country of Publication:
- United States
- Language:
- English
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