Cooling circuit for a stator vane braze joint

A turbomachine comprising:

• a compressor section;
• a combustion section;
• and
• a turbine section comprising a plurality of stator vanes, wherein at least one stator vane of the plurality of stator vanes comprises:
• a platform defining an opening;
• an airfoil having a leading edge, a trailing edge, a suction side wall, and a pressure side wall, the airfoil extending radially between a base and a tip, wherein at least one of the base or the tip includes a protrusion, the protrusion extending into the opening of the platform such that the platform surrounds the protrusion of the airfoil;
• a braze joint disposed between and fixedly coupling the platform and the protrusion of the airfoil;
• and
• a cooling circuit defined in the protrusion of the airfoil to cool the braze joint.