The current research was focused on synthesizing potassium sodium niobate (KNN) piezoelectric ceramics for the system (K0.48Na0.52) NbO3 by high energy ball milling process for 15h at the speed of 300 rpm. The blended nano-crystalline powder was calcined in conventional box furnace at 700oC, 800oC and 900oC for duration of 5h, 7h and 10h. Diffraction result of calcine powder confirmed the f...