In the current paper, the ageing and de-ageing phenomena in ferroelectric ceramics are modelled by a Landau-type model based on the internal bias field theory. A new phenomenological term for the internal bias electrical field is added into the free energy function to simulate the phenomenon of lattice symmetry during the ageing phenomenon. The simulations for both ageing and de-ageing phenomena are successfully presented in the current paper. The hysteretic behaviours of the ageing and de-ageing phenomena are captured very well by the proposed model.

中文翻译：

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通过Landau型现象学模型对铁电体中的老化现象进行建模

在本文中，基于内部偏置场理论，通过Landau型模型对铁电陶瓷的老化和老化现象进行了建模。内部偏置电场的一个新的现象学术语被添加到自由能函数中，以模拟老化现象期间的晶格对称现象。本文成功地提出了老化和老化现象的仿真。该模型很好地捕捉了老化和老化现象的滞后行为。