Influence of the phase composition of refractory materials on creep

• Main Authors: Terzić A., Pavlović Lj., Milutinović-Nikolić A.
• Format: Article
• Language: English
• Published: International Institute for the Science of Sintering, Beograd 2006-01-01
• Series: Science of Sintering
• Subjects: thermal properties; mechanical properties; refractories; activation energy for creep; porosity
• Online Access: http://www.doiserbia.nb.rs/img/doi/0350-820X/2006/0350-820X0603255T.pdf

In this paper, the relationship between the creeping effect and mineralogical characteristics of the applied binding phase for various refractory materials (high-alumina materials, with high or low impurity content, tar bonded either magnesite or dolomite materials and silicate bonded chrom-magnesite materials) is presented. The mechanism of creeping is analyzed and the activation energy for creep for each investigated material is obtained and discussed. All investigated materials are creep sensitive under investigated conditions and have similar activation energies for creep except high-alumina refractories with a low impurity content.