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KoreanHigh-voltage performance of lead-free piezoelectric ceramics
Performance with high-voltage lead-free piezoelectric ceramics, involving a new type of multi-Lead-free piezoelectric ceramic composition, perovskite structure belonging to the coordination environment of piezoelectric ceramics. The invention of lead-free piezoelectric ceramic composition can be used formula (1-x) (Bi1-yLy) (1-w) (Na1-zLiz) wTiO3 + xBaTiO3 + aMαOβ (wt%) to represent, where 0 <x <1,0 <y <0.1,0 ≤ z <0.1,0.3 ≤ w ≤ 0.7, L is the rare earth elements, such as La, Y, Ce, Pr, Nd, Sm, Dy, Ho, Er, Tm, Yb, Lu, Eu, Gd, etc., MαOβ is one or more doped oxide, the content of a predominant component (1-x) (Bi1-yLy) (1-w) (Na1-zLiz) wTiO3 + xBaTiO3 the weight ratio of 0-10%, M +1- +6 for the price and can form a solid oxide and oxygen elements, such as Na, K, Li, Ni, Zn, Cr, Co, Nb, Ta, Al, Cu , Fe, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb, In, Y, Sc, La, Ho, Lu, Sn, Sb, Mn, Ca, Ba, Sr, Mg, Si, etc., α and β, respectively, related to the corresponding oxides of the elements of M and oxygen atoms, the piezoelectric ceramic composition of the d33 system up 200pC / N so, kp up to 35.0% or more. Type of lead-free piezoelectric ceramic composition process is stable,
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