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Low-temperature sintered niobium-nickel-lead zirconate titanate piezoelectric ceramic material and preparation method thereof
The invention discloses a low-temperature sintered niobium-nickel-lead zirconate titanate piezoelectric ceramic material and a preparation method thereof, the raw material formula is xPb(Ni1/3Ti2/3)O3-(1-x)Pb(ZryTi1-y)O3+awt.%(cPbO-dCuO), wherein x = 0.34-0.36, y = 0.4-0.42, a = 0-2, c = 0.75-0.8, and c + d = 1. The preparation method adopts a traditional solid-phase sintering process and comprises the following specific steps: proportioning, ball-milling, presintering, crushing, addition of doped PbO and CuO, fine grinding, addition of deionized water, granulation, tabletting, sintering, silver firing and polarization, wherein PbO volatilizes due to fact that sintering temperature is too high, and sintering temperature can be greatly reduced after small amount of PbO and CuO are added. Experiment results show that the piezoelectric ceramic has good performances, the piezoelectric constant d33 is 780 PC/N, the electromechanical coupling coefficient kp reaches 0.62, the room temperaturedielectric constant reaches 3982, the room temperature dielectric loss tan delta is only 2.5%, and the sintering temperature is less than or equal to 1000 DEG C. Therefore, the requirement for preparing devices such as piezoelectric loudspeakers can be met.
本发明公开了一种低温烧结铌镍‑锆钛酸铅压电陶瓷材料及其制备方法，原料配方为:xPb(Ni1/3Ti2/3)O3‑(1‑x)Pb(ZryTi1‑y)O3+awt.％(cPbO‑dCuO),其中x＝0.34‑0.36,y＝0.4‑0.42,a＝0‑2,c＝0.75‑0.8,c+d＝1,本发明采用传统的固相烧结方法，具体的步骤包括配料球磨、预烧、然后粉碎、加入掺杂的PbO和CuO、细磨、加去离子水造粒、压片、烧结、烧银、极化。烧结温度过高，会导致PbO挥发，当加入少量的PbO和CuO后便可极大的降低烧结温度，实验结果表明，本发明的压电陶瓷的各项性能较好，其中压电常数d33为780PC/N，机电耦合系数kp达到0.62，室温介电常数达到3982,室温介电损耗tanδ仅2.5％，且烧结温度≤1000℃，能够满足制备压电扬声器等器件的要求。
Low-temperature sintered niobium-nickel-lead zirconate titanate piezoelectric ceramic material and preparation method thereof
The invention discloses a low-temperature sintered niobium-nickel-lead zirconate titanate piezoelectric ceramic material and a preparation method thereof, the raw material formula is xPb(Ni1/3Ti2/3)O3-(1-x)Pb(ZryTi1-y)O3+awt.%(cPbO-dCuO), wherein x = 0.34-0.36, y = 0.4-0.42, a = 0-2, c = 0.75-0.8, and c + d = 1. The preparation method adopts a traditional solid-phase sintering process and comprises the following specific steps: proportioning, ball-milling, presintering, crushing, addition of doped PbO and CuO, fine grinding, addition of deionized water, granulation, tabletting, sintering, silver firing and polarization, wherein PbO volatilizes due to fact that sintering temperature is too high, and sintering temperature can be greatly reduced after small amount of PbO and CuO are added. Experiment results show that the piezoelectric ceramic has good performances, the piezoelectric constant d33 is 780 PC/N, the electromechanical coupling coefficient kp reaches 0.62, the room temperaturedielectric constant reaches 3982, the room temperature dielectric loss tan delta is only 2.5%, and the sintering temperature is less than or equal to 1000 DEG C. Therefore, the requirement for preparing devices such as piezoelectric loudspeakers can be met.
本发明公开了一种低温烧结铌镍‑锆钛酸铅压电陶瓷材料及其制备方法，原料配方为:xPb(Ni1/3Ti2/3)O3‑(1‑x)Pb(ZryTi1‑y)O3+awt.％(cPbO‑dCuO),其中x＝0.34‑0.36,y＝0.4‑0.42,a＝0‑2,c＝0.75‑0.8,c+d＝1,本发明采用传统的固相烧结方法，具体的步骤包括配料球磨、预烧、然后粉碎、加入掺杂的PbO和CuO、细磨、加去离子水造粒、压片、烧结、烧银、极化。烧结温度过高，会导致PbO挥发，当加入少量的PbO和CuO后便可极大的降低烧结温度，实验结果表明，本发明的压电陶瓷的各项性能较好，其中压电常数d33为780PC/N，机电耦合系数kp达到0.62，室温介电常数达到3982,室温介电损耗tanδ仅2.5％，且烧结温度≤1000℃，能够满足制备压电扬声器等器件的要求。
Low-temperature sintered niobium-nickel-lead zirconate titanate piezoelectric ceramic material and preparation method thereof
一种低温烧结铌镍-锆钛酸铅压电陶瓷材料及其制备方法
SHANG XUNZHONG (author) / ZHAO BING (author) / ZHOU TAOSHENG (author) / ZHU TIANWEN (author) / WU JING (author) / SHANG YINZHONG (author)
2020-11-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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