RT Journal Article ID 4ce6682b724188de A1 Prakash, S. A1 Sasikumar, Rathinasabapathy A1 Natarajan, Elango T1 SUPERIOR MATERIAL PROPERTIES OF HYBRID FILLER-REINFORCED ALUMINUM MMC THROUGH DOUBLE-LAYER FEEDING TECHNIQUE ADOPTED IN BOTTOM TAPPING STIR CASTING JF High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes JO HTM YR 2018 FD 2018-10-04 VO 22 IS 4 SP 249 OP 258 K1 aluminum metal matrix composites (AMMCs) K1 bottom tapping stir casting K1 double-layer feeding technique K1 hybrid fillers AB Aluminum metal matrix composite (AMMCs) is one of the competent materials in aerospace and defence industry among various existing composites. Silicon carbide (2.5 wt.%), magnesium oxide (2.5 wt.%), aluminum oxide (2.5 wt.%) fillers are attempted in this research to improve the mechanical properties of the AA7075 alloy. Single filler-reinforced samples and hybrid filler-reinforced samples are prepared using the double-layer feeding method adopted in the bottom tapping stir casting technique. The mechanical properties of the composite are examined as per ASTM standard, and distributions of fillers are characterized by means of an optical microscope. A drastic increase in tensile strength (34%), yield strength (45%), and hardness (44%) is shown by the AA7075/MgO/SiC/Al2O3 composite. It is also noticed that the injected microfillers are reasonably distributed over the base matrix with low porosity and low agglomeration that aids in obtaining the improved properties. PB Begell House LK https://www.dl.begellhouse.com/journals/57d172397126f956,63ee29d3174e8fa5,4ce6682b724188de.html