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High dielectric constant and high piezoelectric strain emission type piezoelectric ceramic material and preparation method thereof
The invention discloses a high dielectric constant and high piezoelectric strain emission type piezoelectric ceramic material and a preparation method thereof, and belongs to the technical field of piezoelectric ceramic manufacturing. The composition of the piezoelectric ceramic material can be represented by the following chemical general formula: Pb1-xSrx [(Mg1/3Nb2/3) a (Zn1/3Nb2/3) b (ZryTi1-y) 1-a-b] O3 + mwt% Fe2O3, wherein x is greater than or equal to 0 and less than or equal to 0.10, y is greater than or equal to 0.50 and less than or equal to 0.54, a is greater than or equal to 0.01 and less than or equal to 0.12, a + b is greater than or equal to 0.02 and less than or equal to 0.25, and m is greater than or equal to 0 and less than or equal to 0.07. The prepared piezoelectric ceramic material has the advantages of high dielectric constant (epsilon r3T = 1800-2200), high piezoelectric strain coefficient (strain value Strain under a 3KV/mm electric field = 0.19%-0.22%, dynamic piezoelectric strain coefficient d * 33 = 690 +/-40pm/V) and the like, is an emission type piezoelectric ceramic material with excellent comprehensive performance, can meet the diversified requirements of an emission transducer on the performance of the piezoelectric ceramic material, and has wide application prospects. The method can be widely applied to the fields of underwater sound, national defense industry and the like.
本发明公开了一种高介电常数高压电应变发射型压电陶瓷材料及制备方法，属于压电陶瓷制造技术领域。该压电陶瓷材料的组成可由下列化学通式来表示：Pb1‑xSrx[(Mg1/3Nb2/3)a(Zn1/3Nb2/3)b(ZryTi1‑y)1‑a‑b]O3+mwt％Fe2O3，其中0≤x≤0.10，0.50≤y≤0.54，0.01≤a≤0.12,0.02≤a+b≤0.25,0≤m≤0.07。制备出的压电陶瓷材料具有高介电常数(εr3T＝1800～2200)、高压电应变系数(3KV/mm电场下应变值Strain＝0.19％～0.22％，动态压电应变系数d*33`＝690±40pm/V)等优势,是一种综合性能优良的发射型压电陶瓷材料，能够满足发射换能器对压电陶瓷材料性能的多样化需求，在水声以及国防工业等领域将得到广泛应用。
High dielectric constant and high piezoelectric strain emission type piezoelectric ceramic material and preparation method thereof
The invention discloses a high dielectric constant and high piezoelectric strain emission type piezoelectric ceramic material and a preparation method thereof, and belongs to the technical field of piezoelectric ceramic manufacturing. The composition of the piezoelectric ceramic material can be represented by the following chemical general formula: Pb1-xSrx [(Mg1/3Nb2/3) a (Zn1/3Nb2/3) b (ZryTi1-y) 1-a-b] O3 + mwt% Fe2O3, wherein x is greater than or equal to 0 and less than or equal to 0.10, y is greater than or equal to 0.50 and less than or equal to 0.54, a is greater than or equal to 0.01 and less than or equal to 0.12, a + b is greater than or equal to 0.02 and less than or equal to 0.25, and m is greater than or equal to 0 and less than or equal to 0.07. The prepared piezoelectric ceramic material has the advantages of high dielectric constant (epsilon r3T = 1800-2200), high piezoelectric strain coefficient (strain value Strain under a 3KV/mm electric field = 0.19%-0.22%, dynamic piezoelectric strain coefficient d * 33 = 690 +/-40pm/V) and the like, is an emission type piezoelectric ceramic material with excellent comprehensive performance, can meet the diversified requirements of an emission transducer on the performance of the piezoelectric ceramic material, and has wide application prospects. The method can be widely applied to the fields of underwater sound, national defense industry and the like.
本发明公开了一种高介电常数高压电应变发射型压电陶瓷材料及制备方法，属于压电陶瓷制造技术领域。该压电陶瓷材料的组成可由下列化学通式来表示：Pb1‑xSrx[(Mg1/3Nb2/3)a(Zn1/3Nb2/3)b(ZryTi1‑y)1‑a‑b]O3+mwt％Fe2O3，其中0≤x≤0.10，0.50≤y≤0.54，0.01≤a≤0.12,0.02≤a+b≤0.25,0≤m≤0.07。制备出的压电陶瓷材料具有高介电常数(εr3T＝1800～2200)、高压电应变系数(3KV/mm电场下应变值Strain＝0.19％～0.22％，动态压电应变系数d*33`＝690±40pm/V)等优势,是一种综合性能优良的发射型压电陶瓷材料，能够满足发射换能器对压电陶瓷材料性能的多样化需求，在水声以及国防工业等领域将得到广泛应用。
High dielectric constant and high piezoelectric strain emission type piezoelectric ceramic material and preparation method thereof
一种高介电常数高压电应变发射型压电陶瓷材料及制备方法
WU FAN (Autor:in) / GAI XUEZHOU (Autor:in) / WANG YUEQUN (Autor:in)
04.03.2022
Patent
Elektronische Ressource
Chinesisch
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