Effect of Synthesis Conditions on Crystal Morphology and Layer Thickness of Nanostructured Sodium Niobate Supported on Metallic Substrate

Table 1

Experimental levels of the factors chosen at the experimental design.

Factor	Symbol	Maximum (+)	Central (0)	Minimum (−)
Time	A	12 h	24 h	36 h
Temperature	B	40°C	80°C	120°C
Alkali concentration	C	0.25 M	0.50 M	0.75 M