Preparation of high density ZnO ceramics by the Cold Sintering Process

Xupeng Jiang, Guisheng Zhu, Huarui Xu, Ling Dong, Jinjie Song, Xiuyun Zhang, Yunyun Zhao, Dongliang Yan, Aibing Yu

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30 Citations (Scopus)


High-density ZnO ceramics were prepared by a Two-Step Cold Sintering Process (TS-CSP) at an ultralow-temperature. The densification process of ZnO ceramics was demonstrated by TS-CSP. And the density, microstructure and electrical properties of the ZnO ceramics were investigated. The results indicate that most of the crystallization of ZnO ceramic can be completed in the first step of sintered at 150 °C/200 MPa for 30 min, with a relative density approaching 97.36%. This relative density was further improved to 99.43% after the second sintering step was deployed at 200 °C/200 MPa for 30 min, which displayed an average grains size of 1.5 μm and resistivity of 0.125 Ω cm. This work demonstrated an effective method to reduce CSP temperature and pressure in the production of high-performance ZnO ceramics.

Original languageEnglish
Pages (from-to)17382-17386
Number of pages5
JournalCeramics International
Issue number14
Publication statusPublished - 1 Oct 2019


  • Cold sintering process
  • High-density ceramics
  • Resistivity
  • ZnO ceramic

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