公开(公告)号：US11493413B2

公开(公告)日：2022-11-08

申请号：US16473337

申请日：2017-12-26

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Yoshifumi Okajima ,  Taiji Torigoe ,  Hiroshi Ishikawa ,  Hitoshi Tamaki ,  Kazuma Takeno

IPC: G01N3/08 ,  G01N1/28

Abstract: A testing method of thermal barrier coating (TBC) is for evaluating the presence or absence of damage to TBC formed on a bending part on which compression stress acts. The method includes a test piece that includes a pair of arm parts, a bending part arranged between the pair of arm parts, and a TBC layer on a bending surface of the bending part; attaching the test piece to a compression testing device after preparing the test piece; and applying compression stress to the test piece in a direction for bringing the pair of arm parts close together after attaching the test piece with the compression testing device. The pair of arm parts are arranged so as to separate from each other from base end portions toward front end portions of the arm parts. The bending part is arranged between the base end portions.

公开(公告)号：US20190284942A1

公开(公告)日：2019-09-19

申请号：US16285699

申请日：2019-02-26

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Shuji Tanigawa ,  Masahiko Mega ,  Taiji Torigoe ,  Yoshifumi Okajima ,  Daisuke Kudo ,  Shuho Tsubota

IPC: F01D5/28 ,  C23C4/01 ,  C23C4/18 ,  C23C24/08

Abstract: A method of repairing a ceramic coating according to an embodiment includes forming a second ceramic layer by thermally spraying ceramic spray particles to a repair section of the ceramic coating in which a first ceramic layer is formed, and melting a part of an interface, on a surface side of the ceramic coating, between the first ceramic layer and the second ceramic layer by heating the part.

公开(公告)号：US11946147B2

公开(公告)日：2024-04-02

申请号：US16979971

申请日：2019-02-06

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Taiji Torigoe ,  Yoshifumi Okajima ,  Daisuke Kudo ,  Masahiko Mega ,  Shuji Tanigawa

IPC: F01D5/28 ,  B32B15/04 ,  C23C4/02 ,  C23C4/04 ,  C23C4/134 ,  C23C28/00 ,  F01D1/00 ,  F01D25/00 ,  F02C7/00

CPC classification number: C23C4/04 ,  B32B15/04 ,  C23C4/02 ,  C23C4/134 ,  C23C28/30 ,  C23C28/32 ,  C23C28/3215 ,  F01D1/00 ,  F01D5/28 ,  F01D5/288 ,  F01D25/00 ,  F02C7/00 ,  B32B2315/02 ,  C04B2235/3246

Abstract: A thermal barrier coating includes a bond coat layer deposited on a substrate, and a ceramic layer deposited on the bond coat layer. The ceramic layer includes a first layer having a porosity of 10% or more and 15% or less, and a second layer having a porosity of 0.5% or more and 9.0% or less and deposited on the first layer.

公开(公告)号：US10808308B2

公开(公告)日：2020-10-20

申请号：US16306635

申请日：2017-06-06

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Shuji Tanigawa ,  Masahiko Mega ,  Taiji Torigoe ,  Yoshifumi Okajima ,  Daisuke Kudo

IPC: C23C4/11 ,  C23C4/073 ,  C23C4/134 ,  C23C4/18 ,  F01D5/28 ,  C23C28/04 ,  C23C28/00 ,  C04B41/52 ,  C04B41/45 ,  F01D25/14 ,  F01D9/04 ,  F23R3/42 ,  F02C7/00 ,  C23C16/448 ,  C23C24/04 ,  C04B41/50 ,  C04B41/00 ,  F02C7/24

Abstract: A thermal barrier coating includes a highly porous layer and a dense layer. The highly porous layer is formed on a heat-resistant base, is made of ceramic, has pores, has a layer thickness of equal to or larger than 0.3 mm and equal to or smaller than 1.0 mm, and has a pore ratio of equal to or higher than 1 vol % and equal to or lower than 30 vol %. The dense layer is formed on the highly porous layer, is made of ceramic, has a pore ratio of equal to or lower than 0.9 vol % that is equal to or lower than the pore ratio of the highly porous layer, and has a layer thickness of equal to or smaller than 0.05 mm.

公开(公告)号：US20190284104A1

公开(公告)日：2019-09-19

申请号：US16255193

申请日：2019-01-23

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Shuji Tanigawa ,  Masahiko Mega ,  Takumi Bono ,  Taiji Torigoe ,  Yoshifumi Okajima ,  Daisuke Kudo ,  Hiroyuki Mitsui

IPC: C04B41/45 ,  C04B35/48 ,  C04B41/50 ,  C04B41/87 ,  C04B41/00 ,  F01D5/28 ,  F01D9/04

Abstract: A ceramic coating includes: a ceramic layer; a molten-and-solidified layer formed on a surface of the ceramic layer; and a packed layer including ceramic packed in a crack which extends in a thickness direction of the molten-and-solidified layer.

公开(公告)号：US11970950B2

公开(公告)日：2024-04-30

申请号：US17765063

申请日：2021-03-26

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Yoshifumi Okajima ,  Taiji Torigoe ,  Masahiko Mega ,  Hiroki Komuro ,  Sosuke Kawasumi

IPC: F01D25/00

CPC classification number: F01D25/005 ,  F05D2220/32 ,  Y10T428/12535

Abstract: A ceramic coating according to at least one embodiment of the present disclosure includes: a bond coat layer formed on a substrate; and a ceramic layer formed on the bond coat layer. The ceramic layer has a first region in contact with an interface between the ceramic layer and the bond coat layer and a second region father away from the interface than the first region from the interface. In a cross-section along a thickness direction of the ceramic layer, the number of crack intersection points at which two or more cracks intersect per unit area in the ceramic layer is larger in the first region than in the second region.

公开(公告)号：US10947615B2

公开(公告)日：2021-03-16

申请号：US16311324

申请日：2017-09-13

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Taiji Torigoe ,  Yoshifumi Okajima ,  Daisuke Kudo ,  Hiroyuki Mitsui ,  Masahiko Mega ,  Shuji Tanigawa

IPC: C23C4/11 ,  C23C4/04 ,  F02C7/00 ,  F01D5/28 ,  F01D9/02 ,  C23C4/073 ,  F01L5/14

Abstract: A thermal barrier coating film includes a bond coat layer that is a metallic bond layer formed on a base material; a topcoat layer that is a ceramic-containing layer formed on the bond coat layer; and at least one of a protective layer and a protective substance. The protective layer is formed on the topcoat layer and mainly contains SrSO4. The protective substance is provided in a plurality of void spaces included in the topcoat layer and mainly contains SrSO4.