Mechanical and fracture behavior of insulating refractory brick.

ANABELLA MOCCIARO; JUAN M. MARTINEZ; PAULA LOPEZ; M. SUSANA CONCONI; NICOLÁS R. RENDTORFF

CERâMICA

Asociación Barasilera de Ceramica

Año: 2023

0366-6913

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