公开(公告)号：US20140241900A1

公开(公告)日：2014-08-28

申请号：US14269240

申请日：2014-05-05

Applicant: General Electric Company

Inventor： Herbert Chidsey Roberts, III ,  Paul Edward Gray ,  Roger Lee Ken Matsumoto ,  Jeffrey H. Boy ,  Philip Harold Monaghan ,  Joseph Halada

IPC: F01D5/00 ,  F01D5/14

CPC classification number: F01D5/005 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  F01D5/147 ,  F01D5/282 ,  F01D5/284 ,  F05D2300/6033 ,  Y10T29/49318 ,  C04B35/80 ,  C04B41/4539 ,  C04B41/4572 ,  C04B41/4582 ,  C04B41/5025 ,  C04B14/4693 ,  C04B41/5059 ,  C04B41/522 ,  C04B41/4523

Abstract: Methods for repairing a turbine airfoil constructed from a CMC material are provided via filling a cavity located in the turbine airfoil with a ceramic paste (e.g., including a ceramic powder and a binder), heating the ceramic paste in the cavity to remove the binder, thereby forming a porous ceramic material, and adding a molten ceramic material to the porous ceramic material. The cavity can be defined in an airfoil of the turbine airfoil (e.g., on a tip or cap of the airfoil). Intermediates formed during the repair of a turbine airfoil are also provided. The intermediate can generally include an airfoil comprising a CMC material, a cavity defined in the airfoil, and a porous ceramic material filling the cavity.

Abstract translation: 通过用陶瓷浆（例如，包括陶瓷粉末和粘合剂）填充位于涡轮机翼型中的空腔来提供用于修复由CMC材料构成的涡轮机翼型的方法，加热腔中的陶瓷浆料以除去粘合剂， 从而形成多孔陶瓷材料，并将熔融陶瓷材料加入到多孔陶瓷材料中。 空腔可以限定在涡轮机翼型的翼型（例如，在翼型的尖端或帽上）。 还提供在涡轮翼型修复期间形成的中间体。 中间体通常可以包括包含CMC材料的翼型，在翼型中限定的空腔和填充空腔的多孔陶瓷材料。