Direction dependent mechanical properties of extruded cordierite honeycombs

The description of the texture in an extruded honeycomb structure of cordierite and its effects on mechanical properties is the main goal of this paper. To understand the behaviour of the extruded material, the elastic properties of a natural cordierite single crystal with a transversal isotropic behaviour were determined with different methods. The CTE and Young's modulus in an extruded structure were empirically correlated with the preferred orientation of the grains and single crystal measurements. The correlated properties were compared with the measured properties. The Young's modulus shows a similar behaviour in different directions while the CTE shows a strong anisotropy, and it is thought that microcracking may influence both properties.