Research Article

[Retracted] Synthesis, Mechanical, and Tribological Performance Analysis of Stir-Casted AA7079: ZrO2 + Si3N4 Hybrid Composites by Taguchi Route

Table 9

Response table for signal to noise ratios (Vickers hardness test); larger is better.

Level% of reinforcementAgitation speed (rpm)Agitation time (min)Molten temperature (°C)

140.5841.2640.9641.06
241.1140.8840.9441.11
341.4241.3041.3241.25
441.4741.1441.3641.18
Delta0.890.420.410.21
Rank1234