CAREER: Novel Ceramic Nanocomposites with Smart Interface Design
职业:具有智能界面设计的新型陶瓷纳米复合材料
基本信息
- 批准号:0846504
- 负责人:
- 金额:$ 40万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-06-01 至 2016-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
NON-TECHNICAL DESCRIPTION: The CAREER program explores the fundamental interface control in ceramic nanocomposite thin films which allow the design of nanostructures with new or significantly improved materials properties. This study will have direct impact on processing high temperature superconductor (HTS) YBa2Cu3O7-ä (YBCO)-coated conductors with high critical current density in both self-field and in-field for many envisioned applications. The fundamental knowledge gained will also illuminate the interfacial phenomena observed in many other ceramic nanocomposite systems with heterogeneous interfaces, such as microelectronic and optoelectronic devices, thin film solid oxide fuel cells (SOFC), thin film solar cells and etc.. The research program will integrate with the following educational objectives: (1) to develop a teaching model "The Art of Laying Apples" for the PI's thin film classes; (2) to offer a multidisciplinary training to undergraduate and graduate students at Texas A&M University (TAMU), and at Los Alamos National Laboratory and the University of Houston through collaboration; and (3) to disseminate the research results to a much broader audience by (a) involving high school teachers in the research project through a summer research program at TAMU; and (b) involving under-represented groups into materials science and engineering through the Women Engineering Forum and the Women Mentor Program at TAMU and the Los Alamos Summer School (LASS) at the University of New Mexico.TECHNICAL DETAILS: This CAREER project addresses fundamental materials science research on the synthesis, characterization and engineering of heterogeneous interfaces in epitaxial ceramic nanocomposites. This project explores misfit dislocations and associated defects commonly observed at heteroepitaxial interfaces in ceramic nanocomposites, and studies their impacts on material functionalities. The material systems selected for this study are nanolayered and nanoparticle-doped YBCO. The goal is to understand interface control in epitaxial nanocomposite ceramic thin films, with the objective to engineer the interfaces for unique functionalities. First, a thorough microstructural characterization will be performed on nanolayered systems where strong interfacial effects have already been observed. A combination of various atomic-scale characterization tools including high-resolution transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS) analysis will be employed to identify misfit dislocations and associated defects at the interfaces. Second, a systematic study to correlate the misfit dislocation density and the flux-pinning property will be conducted on YBCO nanocomposite thin films. Finally, a novel 2D ordered nanoparticle array confined by the 2D misfit dislocation array is proposed. All the YBCO nanocomposite thin films will be prepared by pulsed laser deposition (PLD) at TAMU. Various characterization techniques, such as high resolution XRD, TEM (combined with STEM and EELS compositional analysis), as well as transport property measurements will be utilized to investigate the structural and flux-pinning properties of these YBCO nanocomposite systems.
非技术描述:CAREER计划探索陶瓷纳米复合薄膜的基本界面控制,允许设计具有新的或显着改进的材料性能的纳米结构。这项研究将直接影响加工高温超导体(HTS)YBa 2Cu 3 O 7-ä(YBCO)涂层导体具有高临界电流密度在自场和在许多设想的应用领域。所获得的基础知识也将照亮许多其他陶瓷纳米复合材料系统中观察到的界面现象与异质界面,如微电子和光电器件,薄膜固体氧化物燃料电池(SOFC),薄膜太阳能电池等。该研究计划将与以下教育目标相结合:(1)为PI的薄膜课程开发一个教学模型“苹果的艺术”;(2)通过合作,在德克萨斯A& M大学(TAMU),洛斯阿拉莫斯国家实验室和休斯顿大学为本科生和研究生提供多学科培训;(3)通过(a)通过TAMU的暑期研究计划让高中教师参与研究项目,将研究结果传播给更广泛的受众;及(B)涉及以下事宜─通过妇女工程论坛和妇女导师计划在TAMU和洛斯阿拉莫斯夏季代表团体进入材料科学和工程技术专长:该职业项目致力于外延陶瓷纳米复合材料中异质界面的合成、表征和工程方面的基础材料科学研究。本项目探讨了在陶瓷纳米复合材料异质外延界面处常见的失配位错和相关缺陷,并研究了它们对材料功能的影响。本研究选择的材料系统是纳米层和纳米颗粒掺杂的YBCO。我们的目标是了解外延纳米复合陶瓷薄膜的界面控制,目的是设计独特的功能界面。首先,一个彻底的微观结构表征将进行纳米层系统中已经观察到强烈的界面效应。各种原子级表征工具的组合,包括高分辨率透射电子显微镜(TEM),扫描透射电子显微镜(STEM)和电子能量损失谱(EELS)分析将用于识别界面处的失配位错和相关缺陷。其次,系统研究了YBCO纳米复合薄膜的错配位错密度与磁通钉扎性能之间的关系。最后,提出了一种由二维错配位错阵列限制的新型二维有序纳米颗粒阵列。所有的YBCO纳米复合薄膜都将在TAMU用脉冲激光沉积法(PLD)制备。各种表征技术,如高分辨率XRD,TEM(结合STEM和EELS成分分析),以及传输性能的测量将被用来调查这些YBCO纳米复合材料系统的结构和磁通钉扎性能。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Haiyan Wang其他文献
Molecule-assisted modulation of the high-valence Co 3+ in 3D honeycomb-like Co x S y networks for high-performance solid-state asymmetric supercapacitors
用于高性能固态不对称超级电容器的 3D 蜂窝状 Co x S y 网络中高价 Co 3 的分子辅助调制
- DOI:
10.1007/s40843-020-1476-2 - 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Haiyan Wang;Ying Yang;Qinghao Li;Wen Lu;Jiqiang Ning;Yijun Zhong;Ziyang Zhang;Yong Hu - 通讯作者:
Yong Hu
Southward Lithospheric-scale Wedging and Formation of the Northeastern Tibetan Plateau: Evidence from High-resolution Deep Seismic-reflection Profiling
青藏高原东北部的南向岩石圈尺度楔入和形成:来自高分辨率深地震反射剖面的证据
- DOI:
- 发表时间:
- 期刊:
- 影响因子:5.3
- 作者:
Rui Gao;Haiyan Wang;An Yin;Zhaoyang Kuang;Andrew Zuza;Wenhui Li;Xiaosong Xiong - 通讯作者:
Xiaosong Xiong
Gas–oil cracking activity of hydrothermally stable aluminosilicate mesostructures (MSU-S) assembled from zeolite seeds: Effect of the type of framework structure and porosity
由沸石晶种组装的水热稳定铝硅酸盐介观结构(MSU-S)的油气裂解活性:骨架结构类型和孔隙率的影响
- DOI:
10.1016/j.cattod.2005.11.035 - 发表时间:
2006 - 期刊:
- 影响因子:5.3
- 作者:
K. Triantafyllidis;A. Lappas;I. Vasalos;Yu Liu;Haiyan Wang;T. Pinnavaia - 通讯作者:
T. Pinnavaia
Analysis of E-government service platform based on cloud computing
基于云计算的电子政务服务平台分析
- DOI:
10.1109/icise.2010.5690772 - 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
Chihyi Yeh;Yiying Zhou;Hao Yu;Haiyan Wang - 通讯作者:
Haiyan Wang
Electrocapacitive behavior of colloidal nanocrystal assemblies of manganese ferrite in multivalent ion electrolytes
铁酸锰胶体纳米晶组件在多价离子电解质中的电电容行为
- DOI:
10.1016/j.colsurfa.2019.04.022 - 发表时间:
2019-07 - 期刊:
- 影响因子:0
- 作者:
Haiyan Wang;Yunchang Sun;Zhen Li;Hongliang Li;Peizhi Guo - 通讯作者:
Peizhi Guo
Haiyan Wang的其他文献
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{{ truncateString('Haiyan Wang', 18)}}的其他基金
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DMREF:用于光子集成电路的磁电光耦合混合超材料薄膜平台
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2323752 - 财政年份:2023
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1902644 - 财政年份:2019
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