Thermomechanical characterization of a fire clay refractory made of Algerian Kaolin - Université Claude Bernard Lyon 1 Accéder directement au contenu
Article Dans Une Revue Revue des composites et des matériaux avancés = Journal of Composite and Advanced Materials Année : 2012

Thermomechanical characterization of a fire clay refractory made of Algerian Kaolin

M. Kolli
  • Fonction : Auteur
M. Hamidouche
  • Fonction : Auteur

Résumé

The thermomechanical behaviour of a mullitic refractory made of Algerian kaolin was investigated. Bending tests reveal that the behaviour was linear until 900 °C and became visco-plastic at 1000 °C. A maximum of strength (33 MPa) was reached at 900 °C where a crack bridging strengthening process was reported. The elaborated refractory presents a maximum elastic modulus of (8.21 GPa) at 700 °C due to the crack healing phenomenon. The calculated apparent activation energy for creep deformation is about 335 kJ/mole (T < 1050 °C). For the highest temperature (> 1050 °C), an increase of the activation energy was recorded. Cyclic thermal shocks realized from 950 °C into a water bath kept at ambient temperature show that the elaborated refractory can be classified as a good thermal shock resistant material. © Lavoisier, Paris.

Dates et versions

hal-01834922 , version 1 (11-07-2018)

Identifiants

Citer

M. Kolli, M. Hamidouche, N. Bouaouadja, Gilbert Fantozzi. Thermomechanical characterization of a fire clay refractory made of Algerian Kaolin. Revue des composites et des matériaux avancés = Journal of Composite and Advanced Materials, 2012, 22 (3), pp.71-84. ⟨10.3166/acsm.37.71-84⟩. ⟨hal-01834922⟩
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