The Effect of Bottom Ash Additions on the Properties of Sintered Bronze-Graphite Composites

Abstract:

The aim of this research was to study the effect of bottom ash additions to a bronze-graphite composite on the sintering behavior, as well as on the resultant physical, mechanical and tribological properties. The composites were produced by a powder metallurgy technique from prealloyed Cu-10Sn bronze powder, graphite powder and milled bottom ash powder. The compositions studied were Cu-10Sn bronze with constant 5 wt.% graphite, and 0-20 wt.% bottom ash. Samples were die compacted under 795 MPa and sintered at 850 oC for 30 minutes in an open atmosphere furnace. It was found that the sintered density of the composites decreased with increasing amounts of bottom ash. The hardness of the samples increased with bottom ash additions and reached a maximum at 5 wt.% and decreased with further additions. The frictional properties were studied using a ball-on-disc test at ambient temperature. It was found that both the friction coefficient and the wear rate were increased with increasing amounts of bottom ash.

• Periodical: Key Engineering Materials (Volume 751)
• Pages: 31-36
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.751.31
• Online since: August 2017
• Authors: Usanee Pantulap*, Chiraporn Auechalitanukul, Ryan C. McCuiston
• Keywords: Bottom Ash, Bronze, Friction Material, Powder metallurgy

References

[1] V.M. Malhotra et al., Effects of fly ash and bottom ash on the frictional behavior of composited, Fuel. 88 (2002) 235-244.

DOI: 10.1016/s0016-2361(01)00126-0

[2] G. Mahanthesh et al., Preparation and property evaluation of aluminum alloy (6061) reinforced with bottom ash particulate composite (ALBAP composite), International Journal of Science Research, Vol. 1, Issue 04, 192-195.

[3] M. Boz et al., The effect of Al2O3 on the friction performance of automotive brake friction material, Tribology International 40 (2007) 1161-1169.

DOI: 10.1016/j.triboint.2006.12.004

[4] G.C. Efe et al., An investigation of the effect of SiC particle size on Cu-SiC composites, Composites: Part B 43 (2012) 1813-1822.

DOI: 10.1016/j.compositesb.2012.01.006

[5] L. Dyachkova et al., On the properties of composites based on sintered bronze with alumina additives, Composites: Part B 45 (2013) 239-247.

DOI: 10.1016/j.compositesb.2012.07.024

[6] Kh.A. Ragab et al., Influence of SiC, SiO2 and graphite on corrosive wear of bronze composites, Tribology International 43 (2010) 594-601.

DOI: 10.1016/j.triboint.2009.09.008