Role of zirconia filler on friction and dry sliding wear behaviour of bismaleimide nanocomposites
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Date
2011
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Abstract
This paper discusses the friction and dry sliding wear behaviour of nano-zirconia (nano-ZrO<inf>2</inf>) filled bismleimide (BMI) composites. Nano-ZrO<inf>2</inf> filled BMI composites, containing 0.5, 1, 5 and 10wt.% were prepared using high shear mixer. The influence of these particles on the microhardness, friction and dry sliding wear behaviour were measured with microhardness tester and pin-on-disc wear apparatus. The experimental results indicated that the frictional coefficient and specific wear rate of BMI can be reduced at rather low concentration of nano-ZrO<inf>2</inf>. The lowest specific wear rate of 4×10-6mm3/Nm was observed for 5wt.% nano-ZrO<inf>2</inf> filled composite which is decreased by 78% as compared to the neat BMI. The incorporation of nano-ZrO<inf>2</inf> particles leads to an increased hardness of BMI and wear performance of the composites shows good correlation with the hardness up to 5wt.% of filler loading. The results have been supplemented with scanning electron micrographs to help understand the possible wear mechanisms. © 2011 Elsevier Ltd.
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Keywords
Bismaleimides, Dry sliding wear, E. Wear, Filled composites, Filler loading, Frictional coefficients, G. Scanning electron microscopy, Good correlations, High shear mixers, Low concentrations, Microhardness tester, Nano-materials, Pin on disc, Scanning electron micrographs, Wear mechanisms, Wear performance, Wear rates, Fillers, Friction, Microhardness, Nanocomposites, Nanostructured materials, Scanning, Scanning electron microscopy, Sprayed coatings, Tribology, Zirconia, Zirconium alloys, Wear of materials
Citation
Materials and Design, 2011, 32, 5, pp. 2644-2649