Effect of Load on the Tribological Properties of Eutectic Al-Si Reinforced n-Al₂O₃ under Dry Sliding Conditions

Table 1

Theoretical density, practical density, and porosity content comparison for different composition samples.

Composition	Reinforcement wt. %	Theoretical density (g/cm^3)	Practical density (g/cm^3)	Density (%)	Porosity content (vol. %)
Base composition	Al-Si	2.66	2.65	99.62	0.3759
Composition 1	Al-Si + 2 wt.% Al2O3	2.68	2.654	99.02	0.9701
Composition 2	Al-Si + 4 wt.% Al2O3	2.712	2.666	98.30	1.696
Composition 3	Al-Si + 6 wt.% Al2O3	2.737	2.691	98.31	1.680
Composition 4	Al-Si + 8 wt.% Al2O3	2.763	2.7	97.71	2.280
Composition 5	Al-Si + 10 wt.% Al2O3	2.789	2.51	89.99	10.003