Ferroelectric ceramics show great potential for medical implants to augment bone regeneration and improve implant fixation. To induce an overall piezoelectric response prior to implantation, a clean, contact-less and non-line-of-sight electrical poling method is preferred to allow poling of arbitrarily structured scaffolds without the need for electrodes or insulating liquids. A feasibility study was conducted on the use of corona discharge, which is a contact-less poling method operating in air, to piezoelectrically activate (Ba,Ca)(Zr,Ti)O₃ (BCZT), (K,Na)NbO₃ (KNN) and commercial Pb(Zr,Ti)O₃ (PZT) ceramics. While both PZT and BCZT are readily poled by the corona technique, KNN requires a high electric field and an extended poling period to activate its piezoelectric potential. Comparing the poling characteristics of samples with and without electrodes revealed that the same degree of poling can be achieved. These results highlight that corona discharge is a feasible method to pole piezoelectric ceramics intended for biomedical applications.

铁电陶瓷对于医疗植入物显示出巨大的潜力，可以增强骨骼再生并改善植入物固定。为了在植入之前引起总体压电响应，优选清洁，无接触且非视线的电极化方法，以允许任意结构的支架极化而无需电极或绝缘液体。对使用电晕放电进行可行性研究，该电晕放电是在空气中运行的非接触极化方法，以压电激活（Ba，Ca）（Zr，Ti）O ₃（BCZT），（K，Na）NbO ₃（KNN）和商用Pb（Zr，Ti）O ₃（PZT）陶瓷。虽然PZT和BCZT都容易通过电晕技术极化，但KNN需要高电场和延长极化时间才能激活其压电势。比较具有电极和不具有电极的样品的极化特性，发现可以实现相同程度的极化。这些结果表明，电晕放电是一种可行的方法，可将用于生物医学应用的压电陶瓷极化。