TypeConference
TitleANALYSIS OF WORN SURFACES OF PALM SHELL ACTIVATED CARBON (PSAC) REINFORCED ALUMINIUM MATRIX COMPOSITE
SourceRTC 014
AuthorZamri bin Yusoff and Shamsul Baharin bin Jamaludin

Abstract

Qualitative analysis of sliding wear behaviour of aluminium reinforced with 5wt% to 20wt% palm shell activated carbon (PSAC) was investigated using pin-on-disc wear testing machine. The composite specimens were fabricated by powder metallurgy technique. Wear testing was conducted at a load of 11N and a fixed sliding velocity of 150RPM. The characterization of the worn surface was conducted using OM, SEM with facility for EDX analysis. The wear rate was optimized at less than 5E10-5gmm-1 in the aluminu composite reinforced with 10wt% PSAC. The analysis of the surfaces indicate that the PSAC particles deformed, by sliding acting of the mating surfaces, as rigid asperity and squeezed out towards the surface film forming a soft interfacial film. The presence of this film was believed to be responsible for the low wear rate obtained at 10wt% PSAC reinforcement. Platic deformation of the matrix induces delamination in both the surface and sub-surface cracks resulting in large flaky debris. 


Content

RTC 014