Supplemental seal for the chordal hinge seals in a gas turbine

A gas turbine comprising:

• a turbine nozzle support ring having a generally axially facing annular first surface;
• a plurality of turbine nozzle segments defining an annular array of stator vanes and an annular second surface in axial opposition to said first surface;
• each said segment including an axially extending projection along a portion of said second surface for engagement with said first surface of said support ring to form a first seal therebetween for sealing between high and low pressure regions on opposite sides of said first seal;
• an annular cavity in one of said first and second surfaces radially outwardly of said first seal, said cavity opening generally in an axial direction and toward another of said first and second surfaces;
• and
• a compliant seal in said cavity including a seal body formed of multiple layers of different materials for compliantly engaging against said another of said first and second surfaces opposite said cavity to seal thereagainst;
• said materials of said seal body comprising a woven metal core, a fiber, a metallic foil and a protective metal layer.