DefinePK

Abstract

This research aim is to make material engineering where marble powder is used to strengthen the alumunium alloy composite material. Alumunium and marble powders are combined by metallurgy method. The alumunium powder is product from Merck German with irregular shape and homogeneous particle size. The marble powder is obtained from marbles stone cutting waste in Maros regency, South Sulawesi province. Marble powder is mashed and sieved up to mesh 200. The alumunium powder is mixed with 10%, 15% and 20% marble powder fraction, and then compacted with a compaction pressure of 300 MPa using cold isostatic pressing method. The result shows that the green body is sintered at 650°C and the holding time for 240 minutes. The composition with largest marble weight fraction had the greatest hardness.