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Koreand33 lead-free piezoelectric ceramic - polymer piezoelectric composites
A high-d33 lead-free piezoelectric ceramic - polymer piezoelectric composites method. The method according to equation (1-x) (LiaNabK1-ab) (Nb1-cSbc) O3-xABO3-yM component ingredients, prepared using traditional ceramic method of preparation of sodium potassium niobium-based lead-free piezoelectric ceramic powder; then ceramic polymer powder and polyvinylidene fluoride was mixed milling; ultrasonic shock after drying, the mixed powder by heat treatment after cold forming, and then sputtered gold electrodes on its surface, silicone oil bath in the polarized test the piezoelectric properties of piezoelectric composite sample d33; Finally, the sample placed in deionized water or salt solution, soak, and then test a sample of the piezoelectric properties of d33. The results showed that after soaking in sodium potassium niobium-based lead-free piezoelectric ceramics - d33 polymer piezoelectric composites without soaked than a substantial increase, to raise the ratio even up to 300%.
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