Thermomechanical Behavior of Refractories

High temperature mechanical characterisation of an alumina refractory concrete for Blast Furnace main trough

“…Indeed, refractory materials stress-strain curves have hardly been established and published, and most of the characterisation undertaken concerned shaped materials such as high alumina bricks, 10 fireclay or MgO C bricks. 11 Among the approaches followed, the use of specific tests or procedures should also be underlined, such as creep test, 12 Weibull analysis based on Modulus of Rupture measurement 13 or Young's Modulus measurements by ultrasonic techniques. 14 Another common approach to assess the thermomechanical behaviour of the refractory materials in service is to characterise their resistance to crack propagation using the well known thermal shock resistance parameters defined by Hasselman.…”

Influence of the mechanical behaviour specificities of damaged refractory castables on the Young's modulus determination

“…Previous studies have already been performed in the field of the high temperature behaviour of refractory castables. [1][2][3][4][5][6][7] Nevertheless, they have been less studied than engineering ceramics 1 and there is still a need in obtaining high temperature mechanical behaviour curves and in developing constitutive laws for these materials. This is particularly true to develop numerical simulation approaches in order to improve the design and the service life duration of structures that are based on refractory castables.…”