CREST: Center for Advanced Materials and Smart Structures.

CREST:先进材料和智能结构中心。

基本信息

项目摘要

There is a keen interest in developing ceramics for a variety of applications ranging from use as structural components, to energy-efficient thermal barriers, to high- performance electronic substrates. Structural ceramics have unique properties that can be used to great advantage in advanced heat engines, such as automotive gas turbines, and low-emission high-efficiency diesel engines. Certain composites are also being developed for various high- temperature applications such as wear resistant materials and smart structure application. Smart ceramic fibers and piezoceramic patch sensors may be attached to the external surfaces of structures, or directly embedded within materials such as advanced composites, to provide in-situ measurements of composite curing, health monitoring of structures, estimating aerodynamic loads on flight vehicles, etc. Thin film oxide-based structures, including high- critical temperature superconductor (HTSC) structures and ferroelectric perovskites, are needed for fabrication of electronic devices such as various sensors and transducers, filters and nonvolatile memories. This film III-V nitrides have also generated tremendous interest because of high- brightness semiconductor light-emitting diodes (LEDs) and injection lasers with wavelengths ranging from red to ultraviolet (UV). This proposal focuses on basic science issues affecting both advanced structural ceramics and electronic ceramic materials in a synergistic manner. The research team includes North Carolina A&T State University (NC A&T), North Carolina State University (NCSU), Oak Ridge National Laboratory (ORNL), and selected industrial partners. NC A&T State University has been associated with both ORNL and NCSU for many years in the advanced ceramic materials research area, and has trained and graduated students together with these organizations. This proposal addresses the fabrication of advanced materials and smart structures using innovative materials proce ssing methods ranging from ion-assisted pulsed deposition and plasma-source molecular beam epitaxy for thin films, to liquid infiltration and reaction synthesis for bulk materials. The advanced materials and their structures of particular interest include structural (surface engineered ceramics, metal-ceramic joints, metal-ceramic composites, tungsten carbide-aluminide composites, and piezofiber composites), and electronic (high-Tc superconductor heterostructures, piezoelectric thin film structures, and wide-bandgap III-V nitride heterostructures) materials. The proposal emphasizes materials processing, characterization, structure-property correlations, performance testing, and modeling for all the proposed materials structures in a coherent way, utilizing complementary skills at NC A&T, NCSU, ORNL, and industry partners. The Center will systematically investigate the influence of various processing parameters on microstructure evolution and properties. Additionally, the atomic structure and chemistry of defects and interfaces will be investigated using high resolution TEM (with 0.18 nm point- to-point resolution) and STEM-Z contrast (with point-to- point resolution 0.13 nm) microscopy techniques. The above combination of techniques, expertise and instrumentation affords the exploration of the nature of metal-ceramic interfaces produced under pulsed laser irradiation, and of interfaces in superconductor and semiconductor heterostructures; and these will then be correlated with properties and performance of these novel materials structures. Graduate and undergraduate students will be trained under the joint supervision of NCA&T, NCSU, ORNL and industry partners. We propose to build upon existing collaborative research and education programs involving various combinations of the proposal partners (NCA&T-NCSU, NC A&T-ORNL, NCSU-ORNL, NCSU-Kopin, NCA&T-numerous industries, etc.). Strong outreach efforts targeted towards the local community will also be a pa rt of this center activity.
人们对开发各种用途的陶瓷有着浓厚的兴趣,从用作结构部件,到节能热障,再到高性能电子衬底。结构陶瓷具有独特的性能,可用于先进的热机,如汽车燃气轮机和低排放的高效柴油发动机。某些复合材料也被开发用于各种高温应用,如耐磨材料和智能结构应用。智能陶瓷纤维和压电贴片传感器可以附着在结构的外表面,或者直接嵌入材料中,如先进的复合材料,以提供复合材料固化的原位测量,结构的健康监测,估计飞行器的气动载荷等。薄膜氧化物结构,包括高温超导体(HTSC)结构和铁电钙钛矿,是制造各种传感器和传感器、滤波器和非易失性存储器等电子器件所必需的。由于高亮度半导体发光二极管(led)和波长范围从红色到紫外线(UV)的注入激光器,这种III-V型氮化物薄膜也引起了极大的兴趣。本提案以协同的方式关注影响先进结构陶瓷和电子陶瓷材料的基础科学问题。研究团队包括北卡罗来纳农工州立大学(NC A&T)、北卡罗来纳州立大学(NCSU)、橡树岭国家实验室(ORNL)和选定的工业合作伙伴。北卡罗来纳州立大学与ORNL和NCSU在先进陶瓷材料研究领域有多年的合作关系,并与这些组织共同培养和毕业学生。该提案涉及使用创新的材料加工方法制造先进材料和智能结构,包括离子辅助脉冲沉积和等离子体源分子束外延用于薄膜,液体浸润和反应合成用于大块材料。先进材料及其结构包括结构材料(表面工程陶瓷、金属-陶瓷接头、金属-陶瓷复合材料、碳化钨-铝化物复合材料和压电纤维复合材料)和电子材料(高tc超导异质结构、压电薄膜结构和宽带隙III-V氮化物异质结构)。该提案强调材料加工,表征,结构-性能相关性,性能测试,并以连贯的方式对所有提议的材料结构进行建模,利用NC a&&t, NCSU, ORNL和行业合作伙伴的互补技能。本中心将系统研究各种工艺参数对组织演变和性能的影响。此外,将使用高分辨率TEM(点对点分辨率为0.18 nm)和STEM-Z对比(点对点分辨率为0.13 nm)显微镜技术研究缺陷和界面的原子结构和化学性质。上述技术、专业知识和仪器的结合提供了探索脉冲激光照射下产生的金属-陶瓷界面的性质,以及超导体和半导体异质结构中的界面;这些将与这些新型材料结构的特性和性能相关联。研究生和本科生将在nca&t, NCSU, ORNL和行业合作伙伴的联合监督下进行培训。我们建议以现有的合作研究和教育计划为基础,涉及提案合作伙伴(NCA&T-NCSU, NCA& T-ORNL, NCSU-ORNL, NCSU-Kopin, NCA& t -众多行业等)的各种组合。针对当地社区的强有力的外展努力也将是该中心活动的一部分。

项目成果

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Jagannathan Sankar其他文献

Jagannathan Sankar的其他文献

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{{ truncateString('Jagannathan Sankar', 18)}}的其他基金

Manufacturing of High Strength, High Ductility, Rare Earth-Free Magnesium Alloy Plate and Sheet Materials by Differential Speed Rolling
差速轧制高强高塑无稀土镁合金板片材制造
  • 批准号:
    2026313
  • 财政年份:
    2020
  • 资助金额:
    $ 510万
  • 项目类别:
    Standard Grant
EAGER: Nanostructured porous and laminate coatings for biodegradable magnesium-based implants with tunable water permeability and improved mechanical properties
EAGER:用于可生物降解镁基植入物的纳米结构多孔和层压涂层,具有可调节的透水性和改进的机械性能
  • 批准号:
    1841463
  • 财政年份:
    2018
  • 资助金额:
    $ 510万
  • 项目类别:
    Standard Grant
MRI: Acquisition of Integrated Research Instrument for Large Animal Testing Investigation
MRI:采购用于大型动物测试研究的综合研究仪器
  • 批准号:
    1229392
  • 财政年份:
    2012
  • 资助金额:
    $ 510万
  • 项目类别:
    Standard Grant
ERC - Small Business: Biological and Biomechanical Assessment of Magnesium as a Possible Bioresorbable Material for Intervertebral Spinal Fusion
ERC - 小型企业:镁作为椎间融合的生物可吸收材料的生物和生物力学评估
  • 批准号:
    1128608
  • 财政年份:
    2011
  • 资助金额:
    $ 510万
  • 项目类别:
    Standard Grant
MRI-R2: Acquisition of a Nanotom-Computed Tomography System for Revolutionizing Metallic Biomaterials Research, Education and Training
MRI-R2:购买纳米计算机断层扫描系统,彻底改变金属生物材料研究、教育和培训
  • 批准号:
    0959511
  • 财政年份:
    2010
  • 资助金额:
    $ 510万
  • 项目类别:
    Standard Grant
NSF Engineering Research Center for Revolutionizing Metallic Biomaterials
NSF 金属生物材料革命工程研究中心
  • 批准号:
    0812348
  • 财政年份:
    2008
  • 资助金额:
    $ 510万
  • 项目类别:
    Cooperative Agreement
MRI: Acquisition of Raman Micro-Spectroscopy System for Advanced Interdisciplinary Materials Research, Education and Training
MRI:采购拉曼显微光谱系统用于高级跨学科材料研究、教育和培训
  • 批准号:
    0619192
  • 财政年份:
    2006
  • 资助金额:
    $ 510万
  • 项目类别:
    Standard Grant
NSF-Europe Materials Collaboration: Self-Organized Nanostructured Thin Films for Catalysis in Perovskite Related Membrane Reactors
NSF-欧洲材料合作:用于钙钛矿相关膜反应器催化的自组织纳米结构薄膜
  • 批准号:
    0502765
  • 财政年份:
    2005
  • 资助金额:
    $ 510万
  • 项目类别:
    Continuing Grant
Center for Advanced Materials and Smart Structures
先进材料和智能结构中心
  • 批准号:
    0205803
  • 财政年份:
    2002
  • 资助金额:
    $ 510万
  • 项目类别:
    Cooperative Agreement

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