Materials World Network: Novel Interface and Strain Control in Epitaxial Nanocomposite Films

材料世界网络：外延纳米复合薄膜中的新型界面和应变控制

• 批准号: 1007969
• 负责人: Xinghang Zhang
• 金额: $ 25.5万
• 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: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2015-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1007969&HistoricalAwards=false
• 关键词: Materials; World; Network; Novel; Interface

NON-TECHNICAL DESCRIPTION: This Materials World Network project explores the fundamental understanding of vertical strain-control in vertical strain controlled nanocomposite (VSCN) systems, which allows growth of strained layers far in excess of the conventional critical thickness. The project involves extensive collaboration between Dr. Haiyan Wang from Texas A & M University (TAMU) and Dr. Judith Driscoll from the University of Cambridge (UCAM). Funding for the latter is provided by the Engineering and Physical Sciences Research Council (EPSRC) in the UK. The broader impact of the research is: 1) junior researchers are involved in international multidisciplinary training and are gaining complementary research experience at both universities and at Los Alamos National Laboratory; 2) the materials science and engineering curricula at both universities is being enhanced; and 3) the results are being disseminated to a much broader audience through the summer research program for high school teachers at TAMU, the Woman Engineer Forum and the Woman Mentor Program at TAMU, the Summer School Program at the University of New Mexico (a Hispanic-Serving Institution), Annual Girls School Association events and the Cambridge Science Festival at UCAM.TECHNICAL DETAILS: This project is concerned with studying VSCN films that can give better physical properties compared to single layer or multilayer films. Basic scientific research is focused on understanding the limitations to strain, interface compatibilities, and lateral ordering. New systems are being grown and explored to demonstrate the power of the VSCN method, and finally demonstrations of the functional applicability of the strongly enhanced VSCN systems are being carried out. Various characterization techniques, such as high resolution XRD and TEM (combined with STEM and EELS), as well as physical property measurements are being utilized to investigate the structure-property relationships of VSCN films.

非技术描述：该材料世界网络项目探索了对垂直应变控制纳米复合材料 (VSCN) 系统中垂直应变控制的基本理解，该系统允许应变层的生长远远超过传统的临界厚度。该项目涉及德克萨斯农工大学 (TAMU) 的 Haiyan Wang 博士和剑桥大学 (UCAM) 的 Judith Driscoll 博士之间的广泛合作。后者的资金由英国工程与物理科学研究委员会（EPSRC）提供。 该研究更广泛的影响是：1）初级研究人员参与国际多学科培训，并在大学和洛斯阿拉莫斯国家实验室获得互补的研究经验； 2）两所大学的材料科学与工程课程正在得到加强； 3) 通过 TAMU 的高中教师暑期研究项目、TAMU 的女工程师论坛和女导师项目、新墨西哥大学（西班牙裔大学）的暑期学校项目，研究结果正在向更广泛的受众传播。 -服务机构）、年度女子学校协会活动和 UCAM 剑桥科学节。技术细节：该项目涉及研究 VSCN 薄膜，与单层或多层薄膜相比，VSCN 薄膜具有更好的物理性能。基础科学研究的重点是了解应变的局限性、界面兼容性和横向排序。正在开发和探索新的系统，以展示 VSCN 方法的强大功能，并最终对强力增强的 VSCN 系统的功能适用性进行演示。各种表征技术，例如高分辨率 XRD 和 TEM（与 STEM 和 EELS 相结合）以及物理性能测量，被用来研究 VSCN 薄膜的结构-性能关系。