Friction of Si3N4 Ball / Si3N4 Disk Sliding in Water with SiO2 Nano-particles
Silica nano-particles that have the average diameter of 7 nm were added to water, and their effects on friction were studied for Si3N4 self-mated sliding couples by a ball-on-disk tribotester under boundary lubricated conditions. By adding 0.01 or 0.1 wt % of silica particles to water, the running-i...
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| Main Authors: | , , |
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| Format: | article |
| Language: | EN |
| Published: |
Japanese Society of Tribologists
2006
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| Subjects: | |
| Online Access: | https://doaj.org/article/c39d0a84c24644a68f28ddfc46a4c1e0 |
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| Summary: | Silica nano-particles that have the average diameter of 7 nm were added to water, and their effects on friction were studied for Si3N4 self-mated sliding couples by a ball-on-disk tribotester under boundary lubricated conditions. By adding 0.01 or 0.1 wt % of silica particles to water, the running-in distance was reduced significantly in both cases at the sliding velocity of 0.21 m/s and resulted in low and stable friction (μ 0.05) under low velocity conditions (v ≤ 0.12 m/s). The optimum concentration of the silica for the low and stable friction was 0.01 wt % among those tested in this study, which is the closest to the solubility limit of silica to water. |
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