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- W2377965292 abstract "Extensive research efforts have been devoted to develop a new substance which could achieve effective lubrication in a broad temperature range.Pb(ReO4)2,composed of the double oxides of PbO and Re2O7,exists in low shear strength.The anti-friction behavior of Pb(ReO4)2 was tested by Universal Micro-Tribotester(UMT-2M) with ball(Si3N4) on disc(superalloy) at elevated and declined temperature in the range of 22℃ to 600℃.Composi-tion of debris and morphologies of worn tracks were determined by X-ray diffraction(XRD) and scanning electron microscope(SEM),and contact resistance between the worn surface and steel ball was measured by UMT.The re-sults show that Pb(ReO4)2 is a superior lubricant at elevated and declined temperatures,and the friction coefficient is much lower than that without lubricant.The superior lubricating properties should be attributed to the formation of an anti-frictional surface film.And higher temperature could result in the formation of a more complete and du-rable film.For Pb(ReO4)2 melts at 566℃,the fused product is much easier to flow and generate a film which could separate the tribo-pairs perfectly.Subsequently,the lowest friction coefficient is gained at 600℃,and good lubrica-tion can be maintained till to 22℃." @default.
- W2377965292 created "2016-06-24" @default.
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- W2377965292 date "2010-01-01" @default.
- W2377965292 modified "2023-10-08" @default.
- W2377965292 title "Anti-friction Behavior of Lead Perrhenate in a Broad Temperature Range" @default.
- W2377965292 hasPublicationYear "2010" @default.
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