SBIR Phase I: Nanocrystalline Superhard Homometallic Films for Replacement of Ceramic Hard Coatings

SBIR 第一阶段：用于替代陶瓷硬质涂层的纳米晶超硬同质金属薄膜

• 批准号: 0128330
• 负责人: Fereydoon Namavar
• 金额: $ 10万
• 依托单位: Spire Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-01 至 2002-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128330&HistoricalAwards=false
• 关键词: SBIR; Phase; Nanocrystalline; Superhard; Homometallic

This Small Business Innovation Research Phase I project will develop the technology for fabrication of M50 bearing steel coatings that are superhard, adherent, nanocrystalline, homometallic (an integrated layer without interface), and resistant to scratch and corrosion. These homometallic coatings will be similar in composition to the metallic substrates onto which they will be deposited. However, their nanocrystalline structures will provide enhancement in important properties such as hardness, toughness, and wear and corrosion resistance, without the brittleness, poor adhesion and other problems associated with conventional ceramic coatings. Prior research has demonstrated that nanocrystalline (3-40 nm grains) Co-Cr deposited onto Co-Cr-Mo substrates possesses hardness close to that of some ceramics (18-26 GPa, 400% increase) without the associated problems with adhesion to metallic substrates, and that fabrication of nanocrystalline (40 nm crystals) Ti, with hardness of 12-14 GPa, can be accomplished. The commercial application of this project will be in the manufacture of aircraft, boats and ground vehicles.

该小型企业创新研究第一阶段项目将开发制造M50轴承钢涂层的技术，这些涂层具有超硬，粘附性，纳米晶，均匀性（无界面的集成层），耐刮擦和耐腐蚀。这些均质涂层在组成上将与它们将被沉积到其上的金属基底相似。然而，它们的纳米晶结构将提供重要性能的增强，例如硬度、韧性、耐磨性和耐腐蚀性，而没有与常规陶瓷涂层相关的脆性、差的粘附性和其它问题。先前的研究已经证明，沉积在Co-Cr-Mo基底上的纳米晶（3-40 nm晶粒）Co-Cr具有接近于某些陶瓷的硬度（18-26 GPa，增加400%），而没有与金属基底的粘附相关的问题，并且可以实现具有12-14 GPa硬度的纳米晶（40 nm晶体）Ti的制造。 该项目的商业应用将是飞机、船只和地面车辆的制造。