MRI: Track 1 Acquisition of An X-ray Diffraction Contrast Tomography Instrument Enabling Research and Education Towards Establishing Microstructure-Property Relationships

MRI:轨道 1 获取 X 射线衍射对比断层扫描仪器,支持建立微观结构-性能关系的研究和教育

基本信息

  • 批准号:
    2319690
  • 负责人:
  • 金额:
    $ 70.45万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-09-01 至 2026-08-31
  • 项目状态:
    未结题

项目摘要

This Major Research Instrumentation (MRI) award supports the acquisition of an X-ray diffraction contrast tomography instrument at Auburn University. This instrument is expected to enable new research, education, and workforce development activities at Auburn University, in the State of Alabama, and in the Southeast region of the United States. The acquired instrument can uniquely reveal the internal microscopic features of a broad range of materials in a non-invasive manner. This is a capability that has been lacking at Auburn University and the surrounding institutions. This instrument will advance several strategic research areas including fatigue and fracture, materials science/engineering, machine learning and data analytics, earth sciences, chemistry, physics, chemical engineering, and environmental engineering. Through these cross-cutting research efforts, this instrument will benefit the society by enabling greener and more efficient advanced manufacturing, fabricating better fitting and more biocompatible bone implants, understanding the impact of global warming on geological materials, and designing stronger and lighter materials. This project will also actively integrate the generated knowledge from the instrument into several outreach and educational activities. This includes activities designed for K-12 students, underrepresented minorities, and women in STEM, as well as graduate/undergraduate education and research training, and short courses for working professionals. The acquisition of the instrument will therefore result in significant broader impact, promoting public awareness and participation in STEM fields. This X-ray diffraction contrast tomography instrument utilizes the diffracted portion of the incident X-ray beam, that would be discarded by conventional X-ray computed tomography systems, to non-destructively map the orientations of crystalline materials in three dimensions. This instrument will deliver researchers the unique ability of obtaining both the ante mortem three dimensional micro-/defect-structures and their response to excitations - a task that has been dilemmatic via conventional approaches. Thus, the construction of true structure-property relationships of crystalline materials will be enabled by knowing the micro-/defect-structure of the same specimen both before and after testing. Owing to the ubiquitous nature of polycrystalline materials, the instrument can enable significant, new research and education activities at Auburn University and regional institutions in three interdisciplinary research areas: metal additive manufacturing, minerals and synthetic inorganic compounds, and polymers and composites. As an example, for additively manufactured metallic materials, this project can help reveal how fatigue damage initiates, elucidating the competing roles of volumetric defects and microstructure mediated crack nucleation mechanisms. Notably, machine learning and data analytics will be used to assist extracting geometric features of micro-/defect-structure and correlate with material response to excitations, including thermal, mechanical, and environmental.This project is jointly funded by the Major Instrumentation Research Program (MRI), the Established Program to Stimulate Competitive Research (EPSCoR), and the division of Civil, Mechanical and Manufacturing Innovation (CMMI).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
该主要研究仪器(MRI)奖支持奥本大学的X射线衍射对比断层扫描仪的收购。该工具预计将在亚拉巴马州的奥本大学和美国东南部地区开展新的研究、教育和劳动力发展活动。所获得的仪器可以以非侵入性的方式独特地揭示各种材料的内部微观特征。这是奥本大学和周边机构一直缺乏的能力。该仪器将推进几个战略研究领域,包括疲劳和断裂,材料科学/工程,机器学习和数据分析,地球科学,化学,物理,化学工程和环境工程。通过这些跨领域的研究工作,该仪器将通过实现更环保,更高效的先进制造,制造更好的拟合和更生物相容的骨植入物,了解全球变暖对地质材料的影响,以及设计更强,更轻的材料来造福社会。该项目还将积极将该文书产生的知识纳入若干外联和教育活动。这包括为K-12学生,代表性不足的少数民族和STEM中的女性设计的活动,以及研究生/本科教育和研究培训,以及工作专业人员的短期课程。因此,获得该工具将产生更广泛的影响,促进公众对STEM领域的认识和参与。这种X射线衍射对比度断层扫描仪利用入射X射线束的衍射部分,其将被传统的X射线计算机断层扫描系统丢弃,以非破坏性地绘制三维晶体材料的取向。该仪器将为研究人员提供获得死前三维微观/缺陷结构及其对激励的响应的独特能力-这是一项通过传统方法难以完成的任务。因此,晶体材料的真实结构-性能关系的构建将通过在测试之前和之后知道相同试样的微观/缺陷结构来实现。由于多晶材料的普遍存在性,该仪器可以在奥本大学和区域机构在三个跨学科研究领域开展重要的新研究和教育活动:金属增材制造,矿物和合成无机化合物,以及聚合物和复合材料。例如,对于增材制造的金属材料,该项目可以帮助揭示疲劳损伤是如何开始的,阐明体积缺陷和微观结构介导的裂纹成核机制的竞争作用。值得注意的是,机器学习和数据分析将用于帮助提取微观/缺陷结构的几何特征,并与材料对激励的响应相关联,包括热,机械和环境。该项目由主要仪器研究计划(MRI),刺激竞争研究的既定计划(EPSCoR)和土木工程师,机械和制造创新(CMMI)。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

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Shuai Shao其他文献

Long term storage of dilute acid pretreatment corn stover feedstock and ethanol fermentability evaluation
稀酸预处理玉米秸秆原料的长期储存及乙醇发酵性能评价
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    11.4
  • 作者:
    Jian Zhang;Shuai Shao;Jie Bao
  • 通讯作者:
    Jie Bao
Neural networks with finite-time convergence for solving time-varying linear complementarity problem
求解时变线性互补问题的有限时间收敛神经网络
  • DOI:
    10.1016/j.neucom.2021.01.015
  • 发表时间:
    2021-06
  • 期刊:
  • 影响因子:
    6
  • 作者:
    Haojin Li;Shuai Shao;Sitian Qin;Yunbo Yang
  • 通讯作者:
    Yunbo Yang
A Variable Off-Time Control Method for a Single-Phase DCM Microinverter
单相DCM微型逆变器的可变关断时间控制方法
Hybrid integrated low-noise linear chirp frequency-modulated continuous-wave laser source based on self-injection to an external cavity
基于外腔自注入的混合集成低噪声线性调频调频连续波激光源
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    7.6
  • 作者:
    Liwei Tang;Hongxiang Jia;Shuai Shao;Sigang Yang;Hongwei Chen;Minghua Chen
  • 通讯作者:
    Minghua Chen
Study on Coil Optimization on the Basis of Heating Effect and Effective Energy Evaluation during Oil Storage Process
基于储油过程热效应和有效能量评价的盘管优化研究
  • DOI:
    10.1016/j.energy.2019.06.130
  • 发表时间:
    2019-10
  • 期刊:
  • 影响因子:
    9
  • 作者:
    Wei Sun;Qinglin Cheng;Zhidong Li;Zhihua Wang;Yifan Gan;Yang Liu;Shuai Shao
  • 通讯作者:
    Shuai Shao

Shuai Shao的其他文献

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