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Preparation method of high-voltage-coefficient lead niobium-stibium niobate-nicklate zirconate-titanate piezoelectric ceramics
The invention discloses a preparation method of high-voltage-coefficient lead niobium-stibium niobate-nicklate zirconate-titanate piezoelectric ceramics. The preparation method comprises the following steps of performing primary ball-milling by using a wet method; synthesizing the raw materials for 3 hours at the temperature of 750 DEG C to obtain powder with small grain sizes; performing secondary ball-milling; pelleting the obtained powder and performing dry-pressing and molding on the powder; sintering at the temperature of 1200-1260 DEG C after gel discharging to obtain the piezoelectric ceramics; performing silver pastebrushing by silk-screen printing and performing silver ink firing; and polarizing by using a non-pressure-maintaining natural cooling polarization mode to obtain the high-pressure piezoelectric ceramics finally. By the preparation method, the shortcoming that self performance cannot be embodied completely due to insufficient polarization in a preparation technology is overcome, the preparation technology is improved to a great extent, and a piezoelectric property is improved.
Preparation method of high-voltage-coefficient lead niobium-stibium niobate-nicklate zirconate-titanate piezoelectric ceramics
The invention discloses a preparation method of high-voltage-coefficient lead niobium-stibium niobate-nicklate zirconate-titanate piezoelectric ceramics. The preparation method comprises the following steps of performing primary ball-milling by using a wet method; synthesizing the raw materials for 3 hours at the temperature of 750 DEG C to obtain powder with small grain sizes; performing secondary ball-milling; pelleting the obtained powder and performing dry-pressing and molding on the powder; sintering at the temperature of 1200-1260 DEG C after gel discharging to obtain the piezoelectric ceramics; performing silver pastebrushing by silk-screen printing and performing silver ink firing; and polarizing by using a non-pressure-maintaining natural cooling polarization mode to obtain the high-pressure piezoelectric ceramics finally. By the preparation method, the shortcoming that self performance cannot be embodied completely due to insufficient polarization in a preparation technology is overcome, the preparation technology is improved to a great extent, and a piezoelectric property is improved.
Preparation method of high-voltage-coefficient lead niobium-stibium niobate-nicklate zirconate-titanate piezoelectric ceramics
MA WEIBING (Autor:in) / GUO YAOXIAN (Autor:in) / CHEN NAN (Autor:in) / WANG MINGYANG (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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