Journal Pre-proof Elimination of grain boundaries and its effect on the properties of silicon nitride ceramics Feng Hu, Tianbin Zhu, Zhipeng Xie, Jian Liu, Zunlan Hu, Di An PII: S0272-8842(20)30335-7 DOI: https://doi.org/10.1016/j.ceramint.2020.02.024 Reference: CERI 24247 To appear in: Ceramics International Received Date: 7 November 2019 Revised Date: 2 February 2020 Accepted Date: 3 February 2020 Please cite this article as: F. Hu, T. Zhu, Z. Xie, J. Liu, Z. Hu, D. An, Elimination of grain boundaries and its effect on the properties of silicon nitride ceramics, Ceramics International (2020), doi: https:// doi.org/10.1016/j.ceramint.2020.02.024. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Ltd.