Essays about: "ball-on-flat"
Found 3 essays containing the word ball-on-flat.
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1. Boric acid as a lubricating additive in fuels and in hydraulic oils
University essay from Uppsala universitet/Tillämpad materialvetenskapAbstract : Boric acid based fuel and oil additives were investigated in this study, with the aims to gain a deeper understanding of how the boric acid fuel additive behaves, to investigate the effect of low rates of fuel additive addition and tribofilm longevity, and to investigate how boric acid behaves as a hydraulic oil additive. Fuel additive experiments were performed in a reciprocating sliding rig with a cylinder on flat contact geometry with fuel additive sprayed on the contact repeatedly, whereas the hydraulic oil experiments were performed in a reciprocating sliding rig with a ball on flat contact with the oil and additive present from the start. READ MORE
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2. REDESIGN OF A TRIBOLOGICAL TEST MACHINE
University essay from Högskolan i Jönköping/JTH, MaskinteknikAbstract : The present work deals with developing a tribological test machine that had been built earlier but did not function properly. It was giving out abnormal noises and vibrations and was not corresponding to its desired functions. READ MORE
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3. Tribological testing of DLC coatings for automotive applications
University essay from Tillämpad materialvetenskapAbstract : In this work, the friction and wear behavior of three DLC coatings was evaluated in various conventional and alternative fuels as well as in commercially available formulated engine oils and additive-free synthetic oil. The first DLC has a thin top-coating of hydrogenated amorphous carbon (a-C:H), the second consists of Si-doped DLC (a-C:H:Si) and the third is a W-doped multilayered structure of a-C:H and a-C:H:W. READ MORE
