THERMOMECHANICAL STUDY OF ALUMINO-SILICATE COMPOSITES

  • PINTO MORA Aliz
    University of Limoges, IRCER, Limoges, France
  • COULIBALY Moustapha
    University of Limoges, IRCER, Limoges, France
  • ZHANG Wen
    Safran Tech, Group PFX, Colombes, France
  • TESSIER-DOYEN Nicolas
    University of Limoges, IRCER, Limoges, France
  • THUNE Elsa
    University of Limoges, IRCER, Limoges, France
  • HUGER Marc
    University of Limoges, IRCER, Limoges, France

Abstract

Layered alumino-silicate composites, used as refractories, are studied to
determine their thermomechanical behavior through a thermal treatment up to 1550°C.
Reactions in the matrix and matrix-particle interactions create a secondary mullitization
(~24 wt.% increase of mullite amount) in the structure that consequently strengthens the
material. Samples with higher pore volume fractions exhibit lower overall Young’s
modulus values.

Cuvinte cheie

Refractory Mullite Thermomechanical Properties.