I-Corps: Atomic Layer Deposited Films for Protection of Precious Silver Objects

I-Corps：用于保护贵重银制品的原子层沉积薄膜

• 批准号: 1509534
• 负责人: Raymond Phaneuf
• 金额: $ 5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-12-15 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1509534&HistoricalAwards=false
• 关键词: Corps; Atomic; Layer; Deposited; Films

Customers in cultural heritage institutions, both large and small facilities, such as the Metropolitan Museum of Art, hold thousands of silver objects under their care. The current method for corrosion protection includes the manual application of polymeric nitrocellulose, which protects objects for 10-20 years and can take 3 to 40 more hours per object depending on its size and complexity. The relatively short film lifetime and long application process leaves museums with thousands of silver objects in a constant cycle of replacing plastic coatings or leaving many objects unprotected. The proposed atomic layer deposited (ALD) coating developed by this I-Corps team is expected to fulfill the rigorous requirements required by cultural heritage institutions such as museums, archives and libraries, and fine silver jewelry manufacturers such as artisans or jewelry retailers.ALD films will allow for the long term protection of cultural heritage objects, as they protect silver significantly longer than the current coating technology, applying nitrocellulose films. By reducing the amount of tarnishing and frequency of polishing, objects can be preserved longer without loss of original surface details. This I-Corps grant will allow ALD coating technology to be transferred to the cultural heritage and museum conservation community. As part of this technology transfer, the team will also develop a better understanding of how ALD metal oxide films affect the chemical structure and visual characteristics of the substrate. While ALD films applied to clean, flat, 2D surfaces is well understood, little work has been completed on the effect of using ALD films on rough, 3D objects with prior surface treatments. The knowledge and experience gained through the I-CORPS program will be shared with other potential entrepreneurs and students through a proposed seminar with the University of Maryland's Clark School of Engineering, Entrepreneurship and Innovation Program, and Hinman CEOs program. This seminar would further disseminate the knowledge gained through I-CORPS to other entrepreneurially-minded students at the University of Maryland.

大型和小型设施（例如大都会艺术博物馆）的文化遗产机构的客户在他们的护理下占有成千上万的银色物体。 当前的腐蚀保护方法包括手动应用聚合物硝酸纤维素，该硝酸纤维素可保护对象10 - 20年，并且每个物体的大小和复杂性可能需要3至40个小时。相对较短的胶卷寿命和较长的应用程序使博物馆在持续更换塑料涂料或使许多物体不受保护的循环中持续了数千个银色物体。预计由该I-Corps团队开发的拟议的沉积原子层（ALD）涂料有望满足文化遗产机构（例如博物馆，档案馆和图书馆）所要求的严格要求，以及精美的银珠宝制造商，例如工匠或珠宝零售商。将允许对文化遗产物体的长期保护，因为它们比当前的涂料技术更长，并应用硝化胶质膜。通过减少抛光和抛光频率的量，可以保留更长的物体，而不会丢失原始表面细节。这项I-Corps赠款将允许ALD涂料技术转移到文化遗产和博物馆保护界。作为该技术转移的一部分，团队还将更好地了解ALD金属氧化物膜如何影响基板的化学结构和视觉特征。虽然对清洁，扁平，二维表面的ALD膜充分了解，但几乎没有完成对在具有先前表面处理的粗糙的3D物体上使用ALD膜的效果。通过I-Corps计划获得的知识和经验将通过马里兰大学克拉克大学工程学，企业家和创新计划以及Hinman CEOS计划与其他潜在企业家和学生共享。该研讨会将进一步传播通过I-Corps获得的知识，向马里兰大学的其他有创业的学生传播。