• Preparation and characterization of porous Si3N4 ceramics prepared by compression molding and slip casting methods

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    • Keywords

       

      Porous Si3N4 ceramics; preparation; microstructure; mechanical properties; gas permeability.

    • Abstract

       

      Porous silicon nitride (Si3N4) ceramics were fabricated by compression molding and slip casting methods using petroleum coke as pore forming agent, and Y2O3–Al2O3 as sintering additives. Microstructure, mechanical properties and gas permeability of porous Si3N4 ceramics were investigated. The mechanical properties and microstructure of porous Si3N4 ceramics prepared by compression molding were better than those which were prepared by slip casting method, whereas slip casting method is suitable for the preparation of porous Si3N4 ceramics with higher porosity and excellent gas permeability.

    • Author Affiliations

       

      Yu Fangli1 Wang Huanrui1 Bai Yu1 Yang Jianfeng1

      1. State Key Laboratory for Mechanical Behaviour of Materials, Xi’an Jiaotong University, Xi’an 710049, P.R. China
    • Dates

       
  • Bulletin of Materials Science | News

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