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The Scientific World Journal
/
2014
/
Article
/
Tab 1
/
Research Article
Optimization of Bi
2
O
3
, TiO
2
, and Sb
2
O
3
Doped ZnO-Based Low-Voltage Varistor Ceramic to Maximize Nonlinear Electrical Properties
Table 1
Experimental ranges and levels of the effective variables in initial ceramic powders.
Symbol
Variable
Unit (%)
Level of variables
0
1
+1.682
Bi
2
O
3
mol
0.16
0.3
0.5
0.7
0.84
TiO
2
mol
0.16
0.3
0.5
0.7
0.84
Sb
2
O
3
mol
0.13
0.2
0.3
0.4
0.47