| Autor: |
DOROFF, STANELY W., MILLER, RICHARD S., THIRUVENGADAM, ALAGU P., WESTCOTT, VERNON C. |
| Zdroj: |
Nature; February 1974, Vol. 247 Issue: 5440 p363-364, 2p |
| Abstrakt: |
SMOOTH spherical particles have been observed during the microscopic analysis of wear surfaces (ref. 1 and R. S. Miller, personal communication) and of wear particles2using a new technique called ferrogram developed by Westcott2. These investigators speculated that the spherical particles were produced by cavitation bubbles occurring at the contact surfaces of the bearing. The possibility of cavitation in bearings is well known3; however, it was difficult to understand how these bubbles could produce such perfect microspheres (in the range of 1 to 10 µm in diameter). To verify that cavitation erosion could indeed produce such spheres, we conducted careful experiments with the help of the American Society for Testing and Materials (ASTM) standard vibratory cavitation erosion apparatus; this communication reports the results of this investigation. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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