公开(公告)号：US09981438B2

公开(公告)日：2018-05-29

申请号：US14734028

申请日：2015-06-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Philip Harold Monaghan ,  John McConnell Delvaux ,  Glenn Curtis Taxacher

IPC: B29D99/00 ,  B29C70/44 ,  F01D5/28

CPC classification number: B29D99/0028 ,  F01D5/282 ,  F01D5/284 ,  F05D2300/222 ,  Y10T29/4998

Abstract: A pre-form CMC cavity and method of forming pre-form CMC cavity for a ceramic matrix component includes providing a mandrel, applying a base ply to the mandrel, laying-up at least one CMC ply on the base ply, removing the mandrel, and densifying the base ply and the at least one CMC ply. The remaining densified base ply and at least one CMC ply form a ceramic matrix component having a desired geometry and a cavity formed therein. Also provided is a method of forming a CMC component.

公开(公告)号：US09746405B2

公开(公告)日：2017-08-29

申请号：US14274160

申请日：2014-05-09

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Philip Harold Monaghan ,  Clifford Bueno ,  Jonathan Immanuel Sperl ,  Cristina Francesca Cozzini

IPC: G01N23/00 ,  G01N9/24 ,  G01N23/04 ,  G01T1/29

CPC classification number: G01N9/24 ,  G01N23/04 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/652 ,  G01T1/2985

Abstract: A method and system are provided for elementally detecting variations in density. The method includes providing a computed tomography device, comprising a radiation source, a detector, and at least one grating between the radiation source and the detector, positioning the component between the radiation source and the detector, directing radiation from the radiation source to the detector to acquire information from the component, generating at least one phase contrast image and at least one dark field contrast image of the component corresponding to variations in density with the information from the component, correlating the variations in density to a foreign mass, and displaying foreign mass distribution within the component. The system includes a radiation source, a detector, a component, a first grating, a second grating, and an analysis device capable of determining total variation of density in response to radiation received by the detector, and correlating the variation of density to free element distribution in the component.

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。