Ceramic turbine shroud

A gas turbine comprising:

• a plurality of inner and outer shrouds wherein said plurality of inner shrouds are made of ceramic material;
• a heat shield disposed within each one of said plurality of outer shrouds;
• and
• a plurality of damping spring and pin systems, each one of said plurality of damping springs and pin systems being provided between an inner surface of ones of said plurality of inner shrouds and said heat shield.

A gas turbine comprising:

• a metallic outer shroud including forward and aft hooks;
• a ceramic inner shroud;
• a pin and spring system for holding said ceramic inner shroud against said forward hook of said metallic outer shroud;
• an anti-rotation pin for securing said ceramic inner shroud against said aft hook of said metallic outer shroud;
• and
• a damping spring and pin assembly secured between a heat shield disposed within said metallic outer shroud and an inner surface of said ceramic inner shroud.