Mechanical and erosion-resistance properties of slag α-sialon ceramics

Wei Wu Chen, Joseph Steel, Yu Zhang, Jiu Xin Jiang, Yi Bing Cheng, Pei Ling Wang, Dong Sheng Yan

Research output: Contribution to journalArticle

Abstract

In the present work, the mechanical properties and erosion-resistance ability of hot-pressed and pressureless sintered slag α-sialon ceramics, which were started from slag α-sialon powders prepared by SHS technique based on slag powders, [J. Mater. Chem. 12 (2002) 1199] were measured. The hardness and toughness of pressureless sintered slag α-sialon samples reached 15.53 GPa and 4.72 MPam1/2 respectively. The strength of hot-pressed slag α-sialon ceramics reached 599 MPa as well. In comparison with Al2O3 and ZrO2 ceramics, as-sintered slag α-sialon ceramics showed much higher erosion-resistance ability. These properties are very close to that of normal α-sialon ceramics prepared by expensive chemical agents as raw materials.

Original languageEnglish (US)
Pages (from-to)2847-2851
Number of pages5
JournalJournal of the European Ceramic Society
Volume24
Issue number9
DOIs
StatePublished - Aug 2004

Keywords

  • Erosion resistance
  • Mechanical properties
  • Sialons
  • Slags
  • Waste materials
  • Wear resistance

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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