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Nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic and preparation method thereof
The invention discloses a nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic, wherein a general chemical formula thereof is [N (1x) (Na0. 5Bi0. 5) TiO3xBaTiO3], and x is greater than or equal to 0.01 and less than or equal to 0.1. A preparation method of the nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic comprises the following steps that the sodium bismuth titanate-based leadless piezoelectric ceramic is prepared by adopting a traditional solid-phase method; the prepared sodium bismuth titanate-based leadless piezoelectric ceramic is placed in an ammonia atmosphere and subjected to heat preservation treatment at a low temperature, the nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic is prepared, ammonia gas or urea provides a nitrogen source, the heat preservation temperature is 500-900 DEG C, and the heat preservation time is 0.5-10 h. The prepared nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic has an electrostrictive strain of 0.52-1.1% and a coercive field of 25.54-48.47 kv/cm, and is suitable for manufacturing a large-strain leadless piezoelectric actuator.
本发明公开了一种氮掺杂钛酸铋钠基无铅压电陶瓷，化学通式为[N‑(1‑x)(Na0.5Bi0.5)TiO3‑xBaTiO3]，其中，0.01≤x≤0.1。氮掺杂钛酸铋钠基无铅压电陶瓷的制备方法，包括以下步骤：采用传统固相法制备钛酸铋钠基无铅压电陶瓷；将制备的钛酸铋钠基无铅压电陶瓷置于氨气氛中，并在低温下进行保温处理，制得氮掺杂钛酸铋钠基无铅压电陶瓷，氨气或脲提供氮源，保温温度为500‑900℃，保温时间为0.5‑10小时。制得的氮掺杂钛酸铋钠基无铅压电陶瓷的电致应变为0.52‑1.1％，矫顽场为25.54‑48.47kv/cm，适合于制造大应变无铅压电致动器。
Nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic and preparation method thereof
The invention discloses a nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic, wherein a general chemical formula thereof is [N (1x) (Na0. 5Bi0. 5) TiO3xBaTiO3], and x is greater than or equal to 0.01 and less than or equal to 0.1. A preparation method of the nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic comprises the following steps that the sodium bismuth titanate-based leadless piezoelectric ceramic is prepared by adopting a traditional solid-phase method; the prepared sodium bismuth titanate-based leadless piezoelectric ceramic is placed in an ammonia atmosphere and subjected to heat preservation treatment at a low temperature, the nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic is prepared, ammonia gas or urea provides a nitrogen source, the heat preservation temperature is 500-900 DEG C, and the heat preservation time is 0.5-10 h. The prepared nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic has an electrostrictive strain of 0.52-1.1% and a coercive field of 25.54-48.47 kv/cm, and is suitable for manufacturing a large-strain leadless piezoelectric actuator.
本发明公开了一种氮掺杂钛酸铋钠基无铅压电陶瓷，化学通式为[N‑(1‑x)(Na0.5Bi0.5)TiO3‑xBaTiO3]，其中，0.01≤x≤0.1。氮掺杂钛酸铋钠基无铅压电陶瓷的制备方法，包括以下步骤：采用传统固相法制备钛酸铋钠基无铅压电陶瓷；将制备的钛酸铋钠基无铅压电陶瓷置于氨气氛中，并在低温下进行保温处理，制得氮掺杂钛酸铋钠基无铅压电陶瓷，氨气或脲提供氮源，保温温度为500‑900℃，保温时间为0.5‑10小时。制得的氮掺杂钛酸铋钠基无铅压电陶瓷的电致应变为0.52‑1.1％，矫顽场为25.54‑48.47kv/cm，适合于制造大应变无铅压电致动器。
Nitrogen-doped sodium bismuth titanate-based leadless piezoelectric ceramic and preparation method thereof
一种氮掺杂钛酸铋钠基无铅压电陶瓷及其制备方法
PANG DONGFANG (author) / ZHAO HUAYU (author)
2021-01-01
Patent
Electronic Resource
Chinese
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