Mechanical and fracture behavior of insulating refractory bricks

Microstructure, texture, and mechanical fracture characterization of three insulating commercial refractories were carried out in order to establish a correlation between these properties. The materials characterized using X-ray powder diffraction (XRD) with Rietveld Le Bail approximation perform phase quantification, mercury intrusion porosimetry, scanning electron microscopy. behavior was studied multi-technique approach that involved three-point bending test, uniaxial compression single-edge notched beam (SENB) test. Stable tests successfully performed. obtained results showed the main differences pore size distribution mineralogical composition. Materials major amount mullite had highest values parameters different performed tests.