公开(公告)号：US11274562B2

公开(公告)日：2022-03-15

申请号：US16608214

申请日：2017-04-25

Applicant: General Electric Company

Inventor： Jianzhi Zhao ,  Chuan Lin ,  Shizhong Wang ,  Mihir Kumar Lal ,  Richard Todd Everhart

IPC: F01D5/28 ,  C23C4/11 ,  C23C4/134 ,  F01D25/08

Abstract: A gas turbine component includes a substrate and a corrosion resistant layer coupled to the substrate. The corrosion resistant layer includes zirconium silicate and is configured to protect the substrate from exposure to a vanadium corrodent.

公开(公告)号：US11203693B2

公开(公告)日：2021-12-21

申请号：US16326721

申请日：2017-09-15

Applicant: General Electric Company

Inventor： Jianzhi Zhao ,  Zhida Pan ,  Cem Murat Eminoglu ,  Canan Uslu Hardwicke ,  Liming Zhang ,  Lei Cao ,  Wenqing Peng

IPC: C09D1/00 ,  C23C4/134 ,  C23C4/01 ,  F01D5/28 ,  C04B24/10 ,  C04B28/26 ,  C04B28/34 ,  B05C21/00 ,  B05D1/08 ,  B05D3/00 ,  F01D5/18 ,  C04B111/00

Abstract: A method includes masking at least one hole of an article with a paste, wherein the hole opens onto a surface of the article, applying a coating to the surface of the article, and removing the paste including contacting the paste with water, leaving at least one open hole in the surface of the coated article. The paste includes about 40-80 wt % of a filler material, about 0.5-20 wt % of an inorganic binder, about 0.5-15 wt % of a polyhydroxy compound and about 5-25 wt % of water. The filler material includes a first material which includes alkali metal doped alumina, zirconium oxide, titanium oxide, silicon dioxide, or a combination thereof and a second material which includes a silicate. A weight ratio between the first and second materials is in a range of about 1-10.