MRI Acquisition of Instrumentation for Thermal Characterization of Materials

用于材料热表征的仪器的 MRI 采集

• 批准号: 0320726
• 负责人: John Selegue
• 金额: $ 17.2万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0320726&HistoricalAwards=false
• 关键词: MRI; Acquisition; Instrumentation; Thermal; Characterization

This action supports the acquisition of a Netzsch LFA 427 Laser Flash Apparatus for the measurement of thermal conductivity and diffusivity. Instrument users include researchers in Chemistry, Chemical and Materials Engineering, Mechanical Engineering, the Center for Applied Energy Research (CAER), the Center for Aluminum Technology and the Painting Technology Consortium. Currently, the University of Kentucky has heavy demand for bulk thermal conductivity measurements and investigators must rely on collaborators at other institutions for such measurements, slowing the research programs. Applications for the Netzsch LFA 427 include characterization of carbon nanoparticle/polymer composites; carbon electrodes used in aluminum manufacture; lightweight aluminum alloys; flame-resistant composites; fluids and nanofluids with high thermal conductivity; organic materials for electronic device applications; naval and automotive coatings; alloys and ceramics for high temperatures and harsh environments; and agricultural grains and similar products. The instrument will be located in dedicated laboratory space at CAER under the supervision of a full-time professional staff member who will acquire data for occasional users, train students and postdoctoral associates, and coordinate data collection.The need for lighter-weight, more energy-efficient materials is increasing, as is the demand on the physical properties of these materials. Such materials are used in the aerospace industry as structural composites and thermal management materials, in chemical processing applications where high temperature stability and chemical resistance are needed, and in the electronics industry to replace metals for conduction and heat management applications. One of the most important physical properties of these materials, especially those based on carbon, is how well they transmit heat energy. Thus, the ability to determine thermal diffusivity is essential for material evaluation. Further, the capacity to tailor or modify thermal properties of materials by chemical functionalization or modification, thermal processing and precursor development is essential in extending their application into high performance, high value markets in electronics, aerospace, information technologies, automobiles and medicine. This instrument will facilitate the education of undergraduate students, graduate students and postdoctoral associates. Undergraduate students are included in research activities to give them more exposure to interdisciplinary work. An effort is made to target recruitment and participation by minority students with a special regional emphasis on Appalachian students.

这一行动支持购买Netzsch LFA 427激光闪光仪，用于测量热导率和扩散率。仪器用户包括化学，化学和材料工程，机械工程，应用能源研究中心（CAER），铝技术中心和涂装技术联盟的研究人员。目前，肯塔基州大学对体热导率测量的需求很大，研究人员必须依靠其他机构的合作者进行此类测量，从而减缓了研究计划。Netzsch LFA 427的应用包括碳纳米颗粒/聚合物复合材料的表征;用于铝制造的碳电极;轻质铝合金;阻燃复合材料;具有高导热性的流体和纳米流体;用于电子设备应用的有机材料;海军和汽车涂料;用于高温和恶劣环境的合金和陶瓷;以及农业谷物和类似产品。该仪器将位于CAER的专用实验室空间，由一名全职专业工作人员监督，他们将为临时用户采集数据，培训学生和博士后同事，并协调数据收集。对更轻，更节能的材料的需求正在增加，对这些材料的物理性能的要求也在增加。此类材料在航空航天工业中用作结构复合材料和热管理材料，在需要高温稳定性和耐化学性的化学加工应用中，以及在电子工业中用于代替金属用于传导和热管理应用。这些材料，尤其是碳基材料，最重要的物理特性之一是它们如何传递热能。因此，确定热扩散率的能力对于材料评估至关重要。此外，通过化学功能化或改性、热加工和前体开发来定制或改变材料的热性能的能力对于将其应用扩展到电子、航空航天、信息技术、汽车和医药中的高性能、高价值市场是必不可少的。该仪器将促进本科生、研究生和博士后研究员的教育。本科生参加研究活动，使他们更多地接触跨学科工作。努力针对少数民族学生的招聘和参与，特别强调阿巴拉契亚学生的区域重点。