METHOD FOR THE PRODUCTION OF A CERAMIC PRODUCT WITH ORIENTED PARTICLES

摘要

The invention relates to a method comprising the following steps: a) the production of a slip comprising more than 4% and less than 50% of ceramic particles and comprising: b) a first particulate fraction consisting of orientable particles having a median length L'50 and representing more than 1% of the ceramic particles, and c) a second particulate fraction having a median length D50 at least ten times shorter than L'50 and representing more than 1% of the ceramic particles, the first and second particulate fractions together representing more than 80% of all of the ceramic particles, in volume percentages based on the total quantity of ceramic particles; d) oriented freezing of the slip by moving a solidification front at a lower speed than the speed of encapsulation of the ceramic particles; e) elimination of the crystals of the solidified liquid phase of said block; and f) optionally sintering.