Nanophases and Nanofabrication

纳米相和纳米制造

• 批准号: 0506082
• 负责人: Hong Liang
• 金额: --
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-22 至 2009-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0506082&HistoricalAwards=false
• 关键词: Nanophases; Nanofabrication

In this research program, Professor Hong Liang at the University of Alaska Fairbanks seeks to develop a new and perhaps revolutionary nanofabrication process to generate nano-scale phases - a crucial step for further expansion of the fledgling nanotechnology manufacturing industry. There are two objectives in this program. The first objective is to develop nanofabrication processes to generate nanodimension phases. The second objective is to understand the role of mechanical stimulation on phase formation and transformation at small scale. The primary experimental approach is to use an atomic force microscope (AFM) to conduct mechanical stimulation. Professor Liang will use several contact and scanning modes to dope elements from an AFM tip to a substrate surface. The doped surfaces will be subsequently heat-treated to form desired phases. The AFM will also be used for surface characterization, along with X-ray photoelectron spectroscopy and high-resolution transmission electron microscope techniques. How structure-surface properties are impacted by the effects of mechanical energy and heat treatment processes will be studied. The simplicity and flexibility of the mechanical manipulation techniques is a significant advantage for synthesis and characterization of nano-structures. The potential applications in nanomachining, assembly, nanosensors, and development of MEMS and NEMS are extremely exciting. Intellectual merit also lies in developing scientific understanding of a series of new phenomena and non-equilibrium transformations. These include: properties of nanophases, nanoscale phase transformation, and their property-performance relationships with materials. Understanding friction-induced nanophases and phase transformation will open new areas of materials research in surface science and nanostructured materials. This research is integrated with education activities, including ongoing program development in Materials Science and outreach to Alaskan K-12 and schoolteachers. Both graduate and undergraduate level students will be involved in this research. Students will have an opportunity to explore the most advanced manufacturing technologies. Expanding such new technologies and bringing them to public attention in the local community is the first step to encouraging small companies in Alaska. Such companies can create more job opportunities in the state, and could change Alaska's technology infrastructure for the better.

在该研究计划中，阿拉斯加Fairbanks大学的Hong Liang教授试图开发一种新的，也许是革命性的纳米制造过程，以生成纳米级阶段 - 这是进一步扩展刚起步的纳米技术制造业的关键步骤。 该程序中有两个目标。第一个目的是开发纳米化过程以生成纳米构想阶段。第二个目标是了解机械刺激在小规模的相形成和转化中的作用。主要的实验方法是使用原子力显微镜（AFM）进行机械刺激。 Liang教授将使用几种接触模式和扫描模式从AFM尖端到底物表面。随后将掺杂的表面进行热处理以形成所需的相。 AFM还将用于表面表征，以及X射线光电子光谱和高分辨率透射电子显微镜技术。将研究如何研究机械能和热处理过程的影响的结构表面特性。机械操纵技术的简单性和灵活性是纳米结构合成和表征的重要优势。纳米机械，组装，纳米传感器以及MEM和NEM的开发中的潜在应用非常令人兴奋。知识分子的优点还在于对一系列新现象和非平衡转换的科学理解。其中包括：纳米相，纳米级相变的性质及其与材料的性质 - 性能关系。了解摩擦引起的纳米相和相变的相变，将为表面科学和纳米结构材料中的材料研究开放新的领域。这项研究与教育活动相结合，包括材料科学的正在进行的计划开发以及向阿拉斯加K-12和学校老师推广。研究生和本科生都将参与这项研究。学生将有机会探索最先进的制造技术。 扩大这种新技术并在当地社区引起公众关注是鼓励阿拉斯加小型公司的第一步。这样的公司可以在该州创造更多的就业机会，并可以更好地改变阿拉斯加的技术基础设施。