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Researching of PZT Piezoelectric Ceramic Material Performance Technology (一)

Views: 2     Author: Site Editor     Publish Time: 2018-01-02      Origin: Site

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Researching of PZT Piezoelectric Ceramic Material Performance Technology (一)

                          Researching of PZT Piezoelectric Ceramic Material Performance Technology (一)


Experiments In the production and research often use some oxides and compounds as trace additives to improve the performance of piezoelectric ceramics. These trace additions replace the positions of some titanium ions and zirconium ions respectively in PZT, which makes the domain walls in the grains that is easy to move, resulting in a marked decrease of the coercive electrical piezo ceramic field and the reduction of the three polarization conditions. Easily polarized. After long-term repeated experiments to determine 6. 5 MHz piezoelectric transducer manufacturers to the modified PZT material, which is composed of Pb0. 90Sr0. 05Mg0 03 Ba0 02 (Zr0. 53Ti0 47) O3 +, CeO2 + MnO2 piezoelectric ceramic material after pre-burning, molding, firing, grinding process, made of 24 mm×0. 35 mm of the piezoelectric effect sensor wafer on both sides of the silver, placed in an oven at 100 ℃ Bake 10 min or more, to the silver layer blue hair removed tiles. Then, will be good silver porcelain placed in a piezo crystal sounder sensor to 15 ℃ / 6 min heating rate uniform heating to 100 ℃, constant temperature is 0.5 h, continue to 15 ℃ / 6 min heating rate uniform heating to 400 ℃, then 20 ℃ / 6 min heating rate ,uniform heating is to 700 ℃, constant temperature is 20 min,Slowly cooled to below 100 ℃ baked. Placed good silver porcelain placed at room temperature for 12 h into the silicone tank, polarized ultrasound piezo crystal under different polarization conditions, measured after 24 h to measure the piezoelectric properties.


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