[Retracted] Process Optimization of Spark Plasma Sintering Parameters for Tungsten Carbide/Silicon Nitride/AA2219 Composites by Taguchi Method

Table 2

Design of the experiment.

Experimental trials	Temperature	Pressure	Dwelling time	Heat rate
				min
A	400	15	8	80
B	400	30	12	160
C	400	45	16	240
D	450	15	12	240
E	450	30	16	80
F	450	45	8	160
G	500	15	16	160
H	500	30	8	240
I	500	45	12	80