MRI: Acquisition of a State-of-the-Art X-ray Diffractometer for Research, Education, and Training

MRI：购买最先进的 X 射线衍射仪用于研究、教育和培训

• 批准号: 0722706
• 负责人: Tabbetha Dobbins
• 金额: $ 34.91万
• 依托单位: Louisiana Tech University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0722706&HistoricalAwards=false
• 关键词: MRI; Acquisition; State; Art; ray

Technical AbstractThis project would fund the acquisition of an X-ray diffractometer equipped with imaging to enhance research and training infrastructure at Louisiana Tech University (LaTech), Grambling State University (GSU) (a historically Black university) and the University of Louisiana at Monroe (ULM) as well as other universities in the surrounding area. Fifteen faculty members from the three institutions are involved in the project as either PI, Co-PI or Other Investigator. The project will support currently funded NSF projects in the topics of drug delivery and release, lithography of conducting polymers, and hydrogen storage materials. Also, research projects currently supported by DARPA and the Louisiana State Board of Regents will also take advantage of the acquisition of this instrument. The instrument will be used for routine phase identification, microdiffraction and will be equipped with a heating stage for carrying out in-situ phase transformation studies. Diffraction signals may be collected from spatial regions of 10 m up to 100 m. The heating stage reaches to temperatures of 900oC in air and in controlled atmosphere. In its early arrival to the Institute for Micromanufacturing (IfM) at Louisiana Tech University, the instrument will be used for several projects in Civil Engineering, Mechanical Engineering, Applied Physics (GSU researchers), Electrical Engineering, Pharmacy (ULM researchers), and Chemistry. Planned use for the instrument includes: (1) to assess the uniformity of functional groups or nanomaterials coated onto microcantilever sensor arrays for defining selectivity and sensitivity; (2) to characterize halloysite clay films used for drug delivery and release; (3) to understand phase distributions in TiCl3-doped NaAlH4 hydrogen storage systems; (4) to characterize sol-gel synthesized lead zirconate titanate (PZT) for tamper resistant MEMS sensors; (5) to assess amounts of amorphous phase present during the powder processing of chronorelevant drug delivery systems; (6) to understand phase changes during the anneal of FePt nanoparticles for magnetic storage media applications; (7) to understand the crystallinity of various nanowires and nanotubes prepared using the template wetting technique; and (8) to characterize phase distribution in concrete which has been strengthened with nanoparticles using electrokinetic osmosis. Acquisition of this instrument will have a strong impact on the continuing expansion of micro and nanotechnology oriented research and educational efforts at LaTech, GSU, ULM, and neighboring institutions. Non-technical AbstractThis project would fund the acquisition of an instrument for studying atom-to-atom distances in solid phase materials. This state-of-the-art instrument will be equipped with microscopic imaging to elucidate the region of sample from which the measurement is to be collected. Although the microscopic imaging supplied with this instrument does not permit the direct visualization of atoms and their arrangement, the instrument is equipped with an operating mode, called diffraction, which permits observation of individual atomic arrangements. Overall, the acquisition of this instrument will enhance the research and training infrastructure at Louisiana Tech University (LaTech), Grambling State University (GSU) (a historically Black university) and the University of Louisiana at Monroe (ULM) as well as universities in the surrounding area. Fifteen faculty members from the three institutions are involved in the project as either PI, Co-PI or Other Investigator. Researchers will be able to use the X-ray diffractometer for routine materials identification and, in some cases, may use the microscopic imaging option for specifying a 'region-of-interest' (ROI) from which to acquire the atomic arrangement information. Since the instrument will be equipped with a heating stage, atomic rearrangements occurring at elevated temperatures can be observed in real time. In its early arrival to the Institute for Micromanufacturing (IfM) at Louisiana Tech University, the instrument will be used for several projects in Civil Engineering, Mechanical Engineering, Applied Physics (GSU researchers), Electrical Engineering, Pharmacy (ULM researchers), and Chemistry. Plans for the instrument includes its use: (1) for improving selectivity and sensitivity of sensors; (2) for drug delivery and controlled drug release research; (3) to understand hydrogen storage systems to support 'clean' energy alternatives; (6) for magnetic storage media applications; and (7) for studying a process with strengthens concrete (after its initial use and wear) by inserting very fine particles into its pores and cracks. Acquisition of this instrument will have a strong impact on the continuing expansion of research and educational efforts at LaTech, GSU, ULM, and neighboring institutions.

技术摘要该项目将资助购买一台配备成像功能的X射线衍射仪，以增强路易斯安那理工大学（LaTech）、格兰布林州立大学（GSU）（一所历史上的黑人大学）和路易斯安那大学门罗分校（乌尔姆）以及周边地区其他大学的研究和培训基础设施。 来自三个机构的15名教师作为PI，Co-PI或其他研究者参与该项目。 该项目将支持目前资助的NSF项目，主题是药物输送和释放，导电聚合物的光刻和储氢材料。 此外，目前由DARPA和路易斯安那州董事会支持的研究项目也将利用该仪器的收购。 该仪器将用于常规相鉴定、微衍射，并将配备一个加热台，用于进行原位相变研究。 衍射信号可以从10 m到100 m的空间区域收集。 加热阶段在空气和受控气氛中达到900 ℃的温度。 在其早期到达微制造研究所（IfM）在路易斯安那理工大学，该仪器将用于土木工程，机械工程，应用物理（GSU研究人员），电气工程，制药（乌尔姆研究人员）和化学的几个项目。 该仪器的计划用途包括：（1）评估涂覆在微悬臂梁传感器阵列上的官能团或纳米材料的均匀性，以确定选择性和灵敏度;（2）表征用于药物输送和释放的埃洛石粘土膜;（3）了解TiCl 3掺杂NaAlH 4储氢系统中的相分布;（4）表征用于防篡改MEMS传感器的溶胶-凝胶合成的锆钛酸铅（PZT）;（5）评估在与时间相关的药物递送系统的粉末加工期间存在的非晶相的量;（6）理解用于磁存储介质应用的FePt纳米颗粒退火期间的相变;（7）理解使用模板润湿技术制备的各种纳米线和纳米管的结晶度;以及（8）利用电动渗透法表征纳米颗粒增强混凝土中的相分布。 该仪器的收购将对LaTech，GSU，乌尔姆和邻近机构的微纳米技术研究和教育工作的持续扩展产生强烈影响。 该项目将资助购置一台研究固相材料中原子间距离的仪器。 这种最先进的仪器将配备显微成像，以阐明将收集测量结果的样本区域。 虽然该仪器提供的显微成像不允许原子及其排列的直接可视化，但该仪器配备了称为衍射的操作模式，可以观察单个原子排列。总体而言，该仪器的收购将加强路易斯安那理工大学（LaTech），格兰布林州立大学（GSU）（历史上的黑人大学）和路易斯安那大学门罗（乌尔姆）以及周边地区的大学的研究和培训基础设施。 来自三个机构的15名教师作为PI，Co-PI或其他研究者参与该项目。 研究人员将能够使用X射线衍射仪进行常规材料鉴定，在某些情况下，可以使用显微成像选项来指定“感兴趣区域”（ROI），从中获取原子排列信息。 由于该仪器将配备有加热台，因此可以在真实的时间内观察到在高温下发生的原子重排。 在其早期到达微制造研究所（IfM）在路易斯安那理工大学，该仪器将用于土木工程，机械工程，应用物理（GSU研究人员），电气工程，制药（乌尔姆研究人员）和化学的几个项目。 该仪器的计划包括其用途：（1）用于提高传感器的选择性和灵敏度;（2）用于药物输送和药物控释研究;（3）了解氢存储系统以支持“清洁”能源替代品;（6）用于磁存储介质应用;和（7）用于研究通过将非常细的颗粒插入混凝土的孔隙和裂缝中来增强混凝土（在其初始使用和磨损之后）的方法。 该仪器的收购将对LaTech，GSU，乌尔姆和邻近机构的研究和教育工作的持续扩展产生强烈影响。