a gas turbine stator component includes a composite , segmented ring made up of an annular array of arcuate segments , each having end faces formed with respective seal slots , with radial gaps formed between opposed end faces of adjacent arcuate segments . a seal is located between each pair of opposed seal slots to thereby seal the gaps , and a channel is provided in each of said arcuate segments adapted to be supplied with cooling air , the channel connecting to a passage extending between the channel and a respective one of the seal slots or radial gaps , on a lower - pressure side of the seal .