Directional thermal expansion of illite/smectite-waste glass mixtures.

Illite/smectite-waste glass samples is made by unidirectional hydraulic press. Pressing in one direction creates texture, what causes different dimensional change in parallel and perpendicular directions of basal planes of illite/smectite particles. Anisotropy of mixtures is assessed by studying thermal expansion up to 1100 °C. Along with a texture, the influence of the waste glass admixture on the dimensional change is determined. The influence of texture causes more intensive relative contraction (∼2%) in perpendicular direction at 1100 °C. The glass admixtures influence is obvious in both directions. The texture and glass addition have an impact on the onsets of the beginning of a sintering. [ABSTRACT FROM AUTHOR]