Mechanical properties of magnesia and magnesia-chromite refractory materials


Koksal N., Toparli M., Altun I.

EURO CERAMICS VIII, PTS 1-3, pp.1779-1782, 2004 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume:
  • Publication Date: 2004
  • Journal Name: EURO CERAMICS VIII, PTS 1-3
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Page Numbers: pp.1779-1782
  • Keywords: refractory materials, mechanical properties, fracture toughness, surface energy
  • Dokuz Eylül University Affiliated: No

Abstract

In this study, modulus of rupture, elastic modulus and fracture toughness values were investigated at elevated temperature for magnesia and magnesia-chromite content of chromite between 6% and 20%. Modulus of rupture and elastic modulus values were calculated by three point bending test at temperatures 400, 600, 800 and 1400 degreesC. Modulus of rupture and Young's modulus values decreased when temperature and content of chromite increased. Modulus of rupture and Young's modulus values at room temperature were compared to the values at 400, 600, 800 and 1400 degreesC. Young's modulus values decreased to about 40% and modulus of rupture values decreased to about 25% of the values at room temperature.