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Wear Reductions and Contact Interface Observations for Carbon Samples Sliding Against Wavy and Smooth Copper Surfaces

出版	ASTM International, 1995
URL	http://books.google.com.hk/books?id=5oZ7zgEACAAJ&hl=&source=gbs_api

註釋Wear tests are presented in which a carbon graphite slider, loaded by a constant 20 N force spring, slides against smooth and wavy copper rotors. Rotors were prepared by attaching 250 ?m thick copper foil to underlying backings of steel or photoelastic polycarbonate. A "smooth" rotor surface firmly attached copper sheeting to a steel disk, machined with a flatness tolerance less than 0.051 mm around the outer circumference. Special "smooth" and "wavy" rotors were prepared by curing polycarbonate beneath 250 micron thick copper foil. Sliding tracks on "wavy" rotors possessed surface waves of tens of microns; here higher harmonic (5 and greater) surface wave components had spectral amplitudes larger than about 50 ?m.