Title:
【発明の名称】タービン囲い板用のレーザセグメント化された熱防壁被覆材
Document Type and Number:
Japanese Patent JP2001525015
Kind Code:
A
Abstract:
A turbine shroud having a coating comprising a bond layer covering the shroud substrate, and a thick ceramic stabilized zirconia layer with a segmented morphology covering the bond coat. The segmented morphology is defined by an array of slots or grooves which extend from the outer surface of the ceramic layer inwards through almost the entire thickness of the coating but without piercing the underlying substrate. The segmented morphology comprises a plurality of grooves that are laser drilled into the ceramic layer. Each groove is formed by laser drilling a series of holes that are spaced from each other so that the groove has a fully segmented portion and a partially segmented portion.
Inventors:
Strengthman, Thomas Yi.
Application Number:
JP54946398A
Publication Date:
December 04, 2001
Filing Date:
May 13, 1998
Export Citation:
Assignee:
Allied Signal Incorporated
International Classes:
F02C7/00; B32B18/00; C23C4/18; C23C28/00; F01D11/12; (IPC1-7): C23C28/00; F02C7/00
Attorney, Agent or Firm:
Toshio Takayama