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Copper oxide doped potassium-sodium niobate electrostrictive strain ceramic and preparation method thereof
The invention discloses a copper oxide doped potassium-sodium niobate electrostrictive strain ceramic and a preparation method thereof. The copper oxide doped potassium-sodium niobate electrostrictive strain ceramic comprises the following raw material components by mole percent: (1-x)(K0.48Na0.52NbO3)-xCuO, wherein x is more than or equal to 0 and less than or equal to 0.02. The copper oxide doped potassium-sodium niobate electrostrictive strain ceramic disclosed by the invention has a main crystal phase in a perovskite structure, has excellent electrostrictive strain property, has large strain of 0.12% at 4 kV per millimeter, can achieve the strain by 0.19% at 6 kV per millimeter, has high Smax/Emax of 300 pm/V and 310 pm/V respectively in single-pole and double-pole electric fields and still keeps the piezoelectric coefficient d33 at 80 pC/N. The copper oxide doped potassium-sodium niobate electrostrictive strain ceramic disclosed by the invention is low in production cost and simple in process and is a ceramic system which has development prospect and is taken as a driver or a sensor.
Copper oxide doped potassium-sodium niobate electrostrictive strain ceramic and preparation method thereof
The invention discloses a copper oxide doped potassium-sodium niobate electrostrictive strain ceramic and a preparation method thereof. The copper oxide doped potassium-sodium niobate electrostrictive strain ceramic comprises the following raw material components by mole percent: (1-x)(K0.48Na0.52NbO3)-xCuO, wherein x is more than or equal to 0 and less than or equal to 0.02. The copper oxide doped potassium-sodium niobate electrostrictive strain ceramic disclosed by the invention has a main crystal phase in a perovskite structure, has excellent electrostrictive strain property, has large strain of 0.12% at 4 kV per millimeter, can achieve the strain by 0.19% at 6 kV per millimeter, has high Smax/Emax of 300 pm/V and 310 pm/V respectively in single-pole and double-pole electric fields and still keeps the piezoelectric coefficient d33 at 80 pC/N. The copper oxide doped potassium-sodium niobate electrostrictive strain ceramic disclosed by the invention is low in production cost and simple in process and is a ceramic system which has development prospect and is taken as a driver or a sensor.
Copper oxide doped potassium-sodium niobate electrostrictive strain ceramic and preparation method thereof
DAI YEJING (author) / LIU ZHEN (author) / YIN DONGSHENG (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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