the flow of air into that part of the gap radial inward of the seal 66 also inhibits leakage of higher pressure compressor air into the hot gas path it will be understood that different seal configurations will dictate the exact flow of the heated cooling air upon reaching the seal slot 60 it will also be understood that a similar cooling arrangement is provided in the adjacent shroud segment 56 in another exemplary shown in fig5 and 6 the shroud segment 150 includes a radially inner surface 152 a circumferential interface surface 154 that faces an adjacent shroud segment similar to shroud segment 56 with a radially extending gap 158 therebetween seal slot 160 is similar to seal slot 60 and cooperates with an adjacent seal slot similar to slot 62 the radially inner surface 152 may also be coated with a tbc 168 as in the previously described embodiment an inlet passage 172 extends from a radially outer surface 174 of the shroud segment and opens into a channel 170 in this embodiment however the outlet passage 176 from the channel 170 opens on the end face or surface 154 radially inwardly of the seal slot 160 so as to purge that portion of the gap 158 radially inward of the seal by having the outlet from passage 176 sufficiently distanced in the radially outward direction from the hot gas path.