Invention Grant
- Patent Title: Local two-layer thermal barrier coating
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Application No.: US15776920Application Date: 2016-11-02
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Publication No.: US10662787B2Publication Date: 2020-05-26
- Inventor: Fathi Ahmad , Daniela Koch , Radan Radulovic
- Applicant: Siemens Aktiengesellschaft
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Beusse Wolter Sanks & Maire
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@423031c1
- International Application: PCT/EP2016/076361 WO 20161102
- International Announcement: WO2017/089082 WO 20170601
- Main IPC: F01D5/28
- IPC: F01D5/28 ; C23C28/00 ; B32B18/00

Abstract:
A turbine blade with a ceramic thermal barrier coating system has a substrate designed as a blade platform and as a blade airfoil. On the substrate is a first ceramic layer as a thermal barrier coating, which protects the substrate in the exposed high temperature region and there is locally an increase of the thermal barrier coating for locally reinforcing the thermal barrier. The increase includes a material that is different from the material of the first ceramic layer. The local reinforcement is arranged over the first ceramic layer, without the first ceramic layer having a reduced layer thickness. The local reinforcement is provided at most on 30% of the area of the blade airfoil and is arranged close to a platform extending over the entire pressure side in the direction of flow and with an extent thereto in the radial direction of the blade airfoil is at most 30%.
Public/Granted literature
- US20180334914A1 LOCAL TWO-LAYER THERMAL BARRIER COATING Public/Granted day:2018-11-22
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