High-Temperature Mechanical Characterisation of In-Situ Forming Spinel-Alumina Castables Using Magnesia or Magnesite as Raw Material
The effect of several parameters: composition, addition of magnesia or magnesite (carbonate) and microsilica addition were investigated. Strength-displacement curves were also recorded during the tests. Microscopic observation and XR diffraction were also introduced to support the discussion and conclusions of the work. Results demonstrate the effect of some parameters on high temperature mechanical behaviour: sintering, phase transformations and liquid phase appearance vs. temperature.