公开(公告)号：US20180050964A1

公开(公告)日：2018-02-22

申请号：US15243005

申请日：2016-08-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Kevin Paul MCEVOY ,  James RUUD ,  Lawrence E. SZALA ,  Susan CORAH ,  Atanu SAHA ,  Hrishikesh KESHAVAN

IPC: C04B35/48 ,  C23C4/134 ,  C23C14/22 ,  C04B35/64 ,  C04B35/622

CPC classification number: C04B35/48 ,  C04B35/62222 ,  C04B35/64 ,  C04B41/009 ,  C04B41/5042 ,  C04B41/87 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/9607 ,  C23C4/11 ,  C23C4/134 ,  C23C14/221 ,  C23C28/3455 ,  F01D5/005 ,  F01D5/288 ,  F05B2230/80 ,  F05B2230/90 ,  F05C2203/0895 ,  F05D2300/2118 ,  Y02T50/6765 ,  C04B41/4539 ,  C04B41/4547

Abstract: The present invention is directed to repair compositions for thermal barrier coatings and methods of use thereof. The repair compositions include a ceramic composition, a colloidal solution, an aqueous binder, an aqueous dispersant, and an aqueous ammonia solution. The ceramic composition includes a first population of yttria-stabilized zirconia particles having a mean diameter from about 250 nm to about 1000 nm, a second population of yttria-stabilized zirconia particles having a mean diameter from about 2 μm to about 10 μm, and a third population of yttria-stabilized zirconia particles having a mean diameter from about 20 μm to about 250 μm. One method includes depositing the repair layer onto the damaged region, the repair layer including the repair composition, and heat treating the repair layer.

公开(公告)号：US20180001336A1

公开(公告)日：2018-01-04

申请号：US15199180

申请日：2016-06-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Pei-Hsin KUO ,  Weston Blaine GRIFFIN ,  Venkat Subramaniam VENKATARAMANI ,  Hrishikesh KESHAVAN

IPC: B05C11/04 ,  B22F5/00

CPC classification number: B05C11/045 ,  B05C5/027 ,  B05C11/023 ,  B05C11/04 ,  B05C17/002 ,  B22F5/009 ,  B22F7/08

Abstract: The present invention is directed to a squeegee apparatus which includes a main housing including an inlet end and an outlet end, the outlet end including an extrusion face and a protruding lip member, the inlet end including an inlet opening and the extrusion face including at least one outlet opening, wherein the inlet opening and the at least one outlet opening are in fluid communication with each other within the main housing. The present invention is also directed to a method for repairing a thermal barrier coating with a squeegee apparatus including supplying a repair composition into the inlet opening of the squeegee apparatus and depositing the repair composition from the at least one outlet opening onto the damaged region and concurrently traversing the squeegee apparatus over the damaged region while contacting a thermal barrier coating adjacent to the damaged region with the lip member.