Surface modified rice husk ceramic particles as a functiona additive: Improving the tribological behaviour of aluminium matrix composites
관리자2018-05-03조회 2206
An electroless deposition method was used to modify the surface properties of rice husk
ceramic particles (RHC) by depositing nano-nickel on the surface of the RHC (Ni-RHC).
The dry tribological performances of aluminum matrix composite adobes containing different
contents of RHC and Ni-RHC particles have been investigated using a micro-tribometer.
Results showed that the Ni–RHC particles substantially improved both the friction and wear
properties of the Ni-RHC/aluminum matrix adobes. The optimal concentration was determined
to be 15 wt% for both the RHC and Ni–RHC particles. The improvements in the
tribological properties of aluminum adobes including the Ni-RHC were ascribed to frictioninduced
peeling off of Ni coating and formation of protection layer on the wear zone, both
of which led to low friction and wear volume.
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