Synthesis and Characterization of Mechanical Properties of AA8014 + Si₃N₄/ ZrO₂ Hybrid Composites by Stir Casting Process

Table 8

Response table for signal-to-noise ratios (microhardness). Larger is better.

Level	% of reinforcement	Stir speed (rpm)	Stir time (min)	Molten temperature (°C)
1	41.71	42.35	41.71	41.23
2	41.90	41.42	41.50	41.99
3	41.93	41.78	42.33	42.33
Delta	0.22	0.93	0.83	1.10
Rank	4	3	2	1