Most processes for the manufacturing of ceramic components have in common that they are based on a powder-technological shaping process using a negative mold and subsequent thermal compaction. For microcomponents these processes require special adjustments especially when high aspect ratio structures have to be fabricated. Shaping methods that allow the application of silicone rubber molds, like low-pressure injection molding (LPIM) or centrifugal casting, not only have the potential to fabricate ceramic components with high aspect ratios but also offer a possibility for the rapid manufacturing of ceramic microcomponents.
The friction and wear behaviour of lubricated ceramic/steel couples was studied, for increasing loads, with a four‐ball tester. For the steel spheres of ceramic/steel couples, a transition point to severe wear was observed, which occurred at loads four to five times higher than the transition for the corresponding steel/steel couple. The extreme‐pressure behaviour for conditions of lubrication with pure hexadecane is compared with the results for lubrication with solutions containing zinc di‐n‐butyl dithiophosphate or zinc di‐sec‐butyl dithiophosphate.
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