Browsing by Author "Barpanda, P."

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Compression strength of saline water-exposed epoxy system containing fly ash particles
(2005) Kishore; Barpanda, P.; Kulkarni, S.M.
Epoxy systems with and without different volume fractions of fly ash particulate fillers are made and their absorption due to immersion in saline water maintained at room temperature are established through weight measurements recorded up to 100h. The 100-h exposed samples are additionally subjected to compression tests to evaluate the strength. The results show that both neat epoxy and fly ash-bearing composites exhibit differing levels of aqueous medium absorption - it being less in ash-free samples. When the ash content in the system is large, the absorption levels are high. The data further revealed that the unexposed samples generally record an increasing strength value with ash content. However, for the exposed cases, a reversal in trend with the ash content is noticed. Attempts to explain these differing trends are made in this work by analyzing the features observed on the surface of compression-failed samples using fractography employing scanning electron microscopy (SEM). 2005 Sage Publications.
Epoxy systems with and without different volume fractions of fly ash particulate fillers are made and their absorption due to immersion in saline water maintained at room temperature are established through weight measurements recorded up to 100h. The 100-h exposed samples are additionally subjected to compression tests to evaluate the strength. The results show that both neat epoxy and fly ash-bearing composites exhibit differing levels of aqueous medium absorption - it being less in ash-free samples. When the ash content in the system is large, the absorption levels are high. The data further revealed that the unexposed samples generally record an increasing strength value with ash content. However, for the exposed cases, a reversal in trend with the ash content is noticed. Attempts to explain these differing trends are made in this work by analyzing the features observed on the surface of compression-failed samples using fractography employing scanning electron microscopy (SEM). © 2005 Sage Publications.
(Compression strength of saline water-exposed epoxy system containing fly ash particles) Kishore; Barpanda, P.; Kulkarni, S.M.
2005
Sliding wear behaviour of an epoxy system reinforced with particulate fly ash filler
(2009) Barpanda, P.; Kulkarni, S.M.; Kishore
Neat epoxy and epoxy containing different volume fraction of as received fy ash particulate fller bearing composites were cast, sectioned and subjected to pin-on-disk tests for evaluating the wear behaviour. The wear tests were conducted for 1 kilometre distance under 1 kg load for sliding velocity ranging from 1 to 5 m/s. The results showed that both neat epoxy and fy ash bearing composites exhibit differing magnitudes of wear loss, it being highest for unreinforced neat epoxy system. The data trends point to the fact that wears loss decreases with increasing content of fy ash in composites. To explain these differences, the wear surfaces were examined under scanning electron microscope and the features thus observed were correlated with the mechanical data.
Sliding wear behaviour of an epoxy system reinforced with particulate fly ash filler
(Adcotec Ltd. info@sagepub.co.uk, 2009) Barpanda, P.; Kulkarni, S.M.; Kishore
Neat epoxy and epoxy containing different volume fraction of as received fy ash particulate fller bearing composites were cast, sectioned and subjected to pin-on-disk tests for evaluating the wear behaviour. The wear tests were conducted for 1 kilometre distance under 1 kg load for sliding velocity ranging from 1 to 5 m/s. The results showed that both neat epoxy and fy ash bearing composites exhibit differing magnitudes of wear loss, it being highest for unreinforced neat epoxy system. The data trends point to the fact that wears loss decreases with increasing content of fy ash in composites. To explain these differences, the wear surfaces were examined under scanning electron microscope and the features thus observed were correlated with the mechanical data.