Hydrogen Embrittlement Protection Coating (HEPCO)

氢脆保护涂层 (HEPCO)

• 批准号: 10075545
• 金额: $ 40.34万
• 依托单位: CAMBRIDGE NANOLITIC LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=10075545
• 关键词: Hydrogen; Embrittlement; Protection; Coating; HEPCO

**Hydrogen** is considered a fundamental energy vector to achieve net zero emissions by 2050, as reflected both by UK and EU government policies. However, use of hydrogen brings significant material challenges, with **hydrogen embrittlement (HE)** being the most critical. Development of innovative Hydrogen Embrittlement Protection Coating is a collaborative effort of UK and German material science companies and research institutions to provide Hydrogen economy with an enabling technology to prevent failures of metal components caused by HE. Currently prevention of HE is sought through selection of special, often expensive metal alloys that have reduced level of HE. That is negatively reflected in the cost of the components and limits areas of hydrogen application. Alternative approach to prevent HE is application of Hydrogen Permeation Barrier (HPB) coatings. Although some commercial HPBs exist, they are limited to niche applications (e.g., H2 bottles) and are often kept as trade secret. It is known however that often-used HPBs are based on Gold (Au, very expensive) and Cadmium (Cd, toxic). UK company Cambridge Nanolitic Limited (CNL) developed an innovative technology for building protective ceramic layers on metal components by a proprietary environmentally friendly electro-chemical oxidation (ECO) technology. ECO coating has been successfully commercialised in automotive, packaging, textile, and electronic industries as corrosion- and wear- resistant protective coatings superior to competing state of the art technologies of anodising, plasma sprayed ceramic, PVD and Plasma Electrolytic Oxidation. ECO coating is a densely packed nanocrystalline aluminium oxide layer atomically bonded to aluminium substrate. Due to nanocrystalline structure it is resistant to thermal and mechanical deformations.Adaptation of CNL technology for hydrogen application will be made by enhancing the structure of nanoceramic oxide layer. Aluminium oxide is known to be a perfect HPB material. Hydrogen permeation resistance would be further enhanced through sealing of ECO ceramic by appropriate media.German company NTTF has a successful experience in developing barrier coatings for various materials including Alumina. NTTF has capacities and skills to development optimal topcoat sealing for ECO ceramic to build a combined coating with efficient HPB properties.Characterisation of novel HPB coatings will be conducted by The Max Planck Institute of Iron Research (Germany) and Cranfield University (UK). The project is believed to bring both academic and applied scientific contribution in understanding Hydrogen Embrittlement processes resulting in an efficient HE protection technology.

**氢**被认为是到2050年净零排放量的基本能量向量，这是英国和欧盟政府政策所反映的。但是，使用氢会带来重大的物质挑战，而**氢含水（HE）**是最关键的。创新的氢植入保护保护涂层的开发是英国和德国材料科学公司和研究机构的协作努力，以为氢经济提供有能力的技术，以防止HE引起的金属组件故障。目前，通过选择降低HE水平的特殊昂贵的金属合金来寻求预防HE。这是负面反映在组件的成本和限制施用氢的领域的。防止他的替代方法是氢渗透屏障（HPB）涂层的应用。尽管存在一些商业HPB，但它们仅限于利基应​​用程序（例如H2瓶），并且通常保存为商业秘密。然而，众所周知，通常使用的HPB基于黄金（AU，非常昂贵）和镉（CD，有毒）。英国公司Cambridge Nanolitic Limited（CNL）开发了一种创新技术，可通过专有环境友好的电力化学氧化（ECO）技术在金属组件上建造保护性陶瓷层。生态涂层已成功地在汽车，包装，纺织品和电子工业中成功商业化，作为腐蚀和耐磨性的保护涂层，优于阳极阳极，血浆喷涂陶瓷，PVD和等离子体电解氧化的竞争状态。生态涂料是一种密集的纳米晶氧化铝氧化铝层原子与铝底物粘合。由于纳米晶体结构，它具有对热和机械变形的抗性。通过增强纳米氧化物氧化物层的结构，将对施用氢的CNL技术进行适应。已知氧化铝是完美的HPB材料。适当的介质将通过密封生态陶瓷的密封将进一步增强氢的耐药性。GermanCompany NTTF在开发包括氧化铝在内的各种材料的屏障涂层方面具有成功的经验。 NTTF具有开发Eco Ceramic的最佳面漆密封的能力和技能，以建造有效的HPB特性。新型HPB涂层的特征将由Max Planck Iron Research（德国）和Cranfield University（英国）进行。据信该项目在理解氢含水过程方面具有学术和应用科学贡献，从而有效地保护了他。