Synthesis, characterization, and application of nanostructured hard coatings

与其他物体移动接触的部件容易磨损。磨损是限制工具、机械零件和生物医学植入物等各种部件寿命的主要失效机制。据估计，每年因佩戴而造成的全球成本为3000亿美元。提高耐磨性是提高各种部件耐用性和性价比的关键。表面涂层是降低零件磨损、提高零件性能的一项重要技术。该研究计划的长期目标是开发技术和设计方法，在具有重要技术意义的材料上设计纳米级的表面涂层，以实现各种应用所需的性能(例如高耐磨性和出色的生物兼容性)。在这项研究提案的过程中，将通过重点开发技术来解决纳米涂层领域的重要挑战和解决某些应用的关键问题，从而朝着长期目标取得进展。一个主要的主题是合成新型的纳米复合涂层并了解它们的基本方面，从而在纳米结构材料领域产生新的知识。另一个主要主题是发现和开发开发的涂层的创新应用，使加拿大人受益。*具体地说，这项研究将专注于新型纳米结构涂层的创建、开发和应用，这些涂层用于先进的机械部件、致动器、电子发射器和具有目标质量的生物医学植入物。这些特性将通过在涂层中使用合适的纳米结构来赋予。这将对从根本上理解先进的纳米材料及其应用做出重要贡献。首先，它将大大有助于提高加拿大纳米材料合成和应用的能力。第二，努力制定程序和专业知识，以合成和表征钻石基纳米结构涂层，并评估其生物医学和摩擦学性能，将有助于更好地了解与纳米材料有关的基本科学问题以及植入物与人体组织之间的相互作用。此外，该研究旨在开发和研究新的纳米结构复合涂层，在纳米结构材料领域产生新的知识。最后，这项研究将为培养具有物理、化学、电子学、数据分析以及材料科学和工程综合知识的高素质人才提供极好的机会。

Components in moving contact with other bodies are subject to wear. Wear is the major failure mechanism limiting the lifetime of various components such as tools, machine parts, and biomedical implants. The world-wide cost due to wear is estimated to be $300 billion per year. Increasing wear resistance is the key to improving the durability and cost effectiveness of various components. Surface coating is an important technology for reducing wear and extending performance of components. The long-term goal of the research program is to develop technologies and design methods to engineer surface coatings at the nanometer scale on technologically important materials to achieve desired properties (e.g. high wear resistance and excellent biocompatibility) for various applications. During the course of this research proposal, progress will made towards long-term goal by focusing on developing technologies to address important challenges in the area of nanocoatings and solve critical problems for some applications. One major theme is to synthesize novel nanocomposite coatings and understand their basic aspects, thus generating new knowledge in the area of nanostructured materials. Another main theme is to discover and develop innovative applications of the developed coatings that benefit Canadians.***Particularly, the research will focus on the creation, development, and application of novel nanostructured coatings for advanced machine parts, actuators, electron emitters, and biomedical implants with a menu of targeted desirable qualities. These qualities will be imparted by using suitable nanostructures in the coatings. It will lead to important contributions to both fundamental understanding of advanced nanomaterials and their applications. First, it will contribute significantly to enhancing the capacity for nanomaterials synthesis and application in Canada. Second, efforts to develop procedures and expertise to synthesize and characterize diamond-based nanostructured coatings and evaluate their biomedical and tribological performance will lead to a better understanding of the basic scientific issues related to nanomaterials and the interaction between implants and human tissues. In addition, the research aims to develop and investigate new nanostructured composite coatings, generating new knowledge in the area of nanostructured materials. Finally, the research will provide excellent opportunities for training highly qualified personnel with integrated knowledge in physics, chemistry, electronics, and data analysis as well as materials science and engineering.********