Abrasion of particles

Xem 1-6 trên 6 kết quả Abrasion of particles
  • In order to be suitable for tribological applications, polymeric materials, which can usually exhibit mechanical strength, lightness, ease of processing, versatility and low cost, together with acceptable thermal and environmental resistances, have to show good abrasion and wear resistance. This target is not easy to achieve, since the viscoelasticity of polymeric materials makes the analysis of the tribological features and the processes involved in such phenomena quite complicated.

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  • Effects of graphene oxide content on mechanical, thermal properties and morphology of composite coating based on acrylic emulsion R4152 and graphene oxide (GO) have been investigated. Obtained results showed that GO particles had insignificant effect on adhesion of composite coating but GO improved abrasion resistance of composite coatings. The abrasion durability of coatings increased with GO ratio rising to 0.5 % and then abrasion resistance of coatings decreased with GO ratio continuously growing up.

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  • The objective of this paper is to optimize the sintering process parameters. To do that, Response Surface Methodology (RSM) is used for the optimization of process parameters, Abrasive concentration in ferromagnetic particles (AC)%, Compacting Pressure (CP) N/mm2 and Sintering Time(ST)min.

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  • Thin sections and polished sections of the mortars were prepared in an impregnation unit under vacuum with an epoxy resin. These were polished with 15 μm Al2O3 abrasive and the final lapping was performed with diamond pastes (15–1 μm). Thin-sections were analysed by light polarized microscopy using a petrographic polarizing Olympus BH2 microscope equipped with an Olympus DP-10 digital camera.

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  • Functional electrochemical coatings: hydrophobic Ni-TiO2 , catalytic Ni-CeO2 -CuO, and cutting, abrasive Ni-CBN all need to be durable and corrosion resistant to ensure stability in usage process. The presence of chemically inert nano and micron particles in the composite coatings leads to surface texture change and corrosion resistance increase.

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  • Grinding, or abrasive machining, is the process of removing metal in the form of minute chips by the action of irregularly shaped abrasive particles. These particles may be in bonded wheels, coated belts, or simply loose. The abrasive grains usually cut with a zero to negative rake angle and

    pdf7p hungnhat 08-12-2009 88 17   Download



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