发明申请
- 专利标题: MULTI-LAYER COATING
- 专利标题(中): 多层涂料
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申请号: US12298458申请日: 2007-04-24
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公开(公告)号: US20100015473A1公开(公告)日: 2010-01-21
- 发明人: Peter Vang Hendriksen , Lars Mikkelsen , Peter Halvor Larsen , Soeren Linderoth , Mogens Mogensen
- 申请人: Peter Vang Hendriksen , Lars Mikkelsen , Peter Halvor Larsen , Soeren Linderoth , Mogens Mogensen
- 申请人地址: DK Kgs. Lyngby
- 专利权人: TECHNICAL UNIVERSITY OF DENMARK
- 当前专利权人: TECHNICAL UNIVERSITY OF DENMARK
- 当前专利权人地址: DK Kgs. Lyngby
- 优先权: EP06008678.2 20060426
- 国际申请: PCT/EP2007/003593 WO 20070424
- 主分类号: H01M8/02
- IPC分类号: H01M8/02 ; B32B7/02 ; B32B9/00 ; B05D3/14 ; B05D1/36 ; C23C16/40 ; C23C14/34 ; H01M6/42 ; C23C16/513
摘要:
A multi-layer coating for protection of metals and alloys against oxidation at high temperatures in general is provided. The invention utilizes a multi-layer ceramic coating on metals or alloys for increased oxidation-resistance, comprising at least two layers, wherein the first layer (3) which faces the metal containing surface and the second layer facing the surrounding atmosphere (4) both comprise an oxide, and wherein the first layer (3) has a tracer diffusion coefficient for cations Mm+, where M is the scale forming element of the alloy, and the second layer (4) has a tracer diffusion coefficient for oxygen ions O2− satisfying the following formula: wherein p(O2)m is the oxygen partial pressure in equilibrium between the metallic sub-strate and MaOb, p(O2)ex is the oxygen partial pressure in the reaction atmosphere, DM is the tracer diffusion coefficient of the metal cations Mm+ in the first layer (3), and Do is O tracer diffusion coefficient in the second layer (4). The coating may be used in high temperature devices, particularly for coating interconnect materials in solid oxide electrolytic devices, including solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs).
公开/授权文献
- US08859116B2 Multi-layer coating 公开/授权日:2014-10-14