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Effects of electrochemical hydrogen charging on lead-based relaxor ferroelectric multilayer ceramic capacitors

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Abstract

Lead-based relaxor ferroelectric multilayer ceramic capacitors (MLC’s) were placed in 0.05 M NaOH solution to evolve hydrogen on their silver termination electrode by electrolysis of water. After this treatment, the MLC’s failed as their insulation resistance was greatly decreased, their dielectric loss was considerably increased, and their capacitance was obviously decreased. By annealing in air at 650 °C for 30 min, the properties of the MLC’s were restored. It is proposed that electrochemically generated hydrogen atoms can diffuse into the ceramic body of MLC’s and undergo reduction to it, which may be one of the reasons for the negative influence of electroplating on lead-based relaxor ferroelectric MLC’s.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China

    Wanping Chen, Longtu Li, Yu Wang & Zhilun Gui

Authors
  1. Wanping Chen
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  2. Longtu Li
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  3. Yu Wang
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  4. Zhilun Gui
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Chen, W., Li, L., Wang, Y. et al. Effects of electrochemical hydrogen charging on lead-based relaxor ferroelectric multilayer ceramic capacitors. Journal of Materials Research 13, 1110–1112 (1998). https://doi.org/10.1557/JMR.1998.0154

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  • DOI: https://doi.org/10.1557/JMR.1998.0154

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