System for manufacturing a crystalline material by directional crystallization provided with an additional lateral heat source

A method for performing fabrication of a crystalline material by directional solidification comprising the following steps:

• providing a crucible equipped with a bottom and a side wall and at least partially filled by the crystalline material in liquid phase,
• generating a main thermal gradient inside the crucible in a first direction substantially perpendicular to the bottom of the crucible so as to obtain progressive solidification of the crystalline material in the first direction and starting from the bottom of the crucible, and
• heating a part of the crystalline material located in the vicinity of the triple contact line formed at an intersection between the liquid crystalline material, the solidified crystalline material, and the side walls of the crucible, by means of an additional inductive heating device arranged at the level of the side walls of the crucible and mounted mobile with respect to the crucible in said first direction, so that the interface between the liquid crystalline material and the solidified crystalline material forms a convex meniscus in the vicinity of said triple contact line, the additional inductive heating device being arranged facing the liquid crystalline material and without overlapping with the solid crystalline phase.