MRI: Development of a Multi-Scale Thermal-Mechanical-Spectroscopic System for in-Situ Materials Characterization, Research, and Training

该主要研究仪器奖支持中佛罗里达大学（UCF）开发用于原位材料表征、研究和培训的多尺度热机械光谱系统（TMS）。该仪器将支持在多个长度尺度、压力、机械负载和温度下同时进行热、机械和光谱（TMS）测量。该仪器将能够准确评估和预测材料/器件在实际操作条件下的行为，研究变形微观力学，监测结构变化和预测寿命，在宏观/微观长度尺度上表征材料。该仪器将是在现实条件下捕获以前无法获得的材料行为方面的理想工具。这种仪器的发展将产生一种革命性的工具，具有展示新研究成果的潜力，同时在能源（例如涡轮机械），民用基础设施（例如桥梁），国防（例如高性能飞机，装甲）方面具有广泛的应用。该项目为博士后、研究生和本科生提供了点对点学习和指导的机会，他们将参与构建子系统并将其集成到仪器中。接触仪器开发和与最先进设备的集成将加强学生在理论设计的实际应用方面的教育，为他们提供高端仪器设计过程的经验，并扩大他们的研究重点，考虑原位技术，以扩大现有的研究领域，并导致新的研究领域。开发的系统将提供给UCF的用户。****了解材料和零件的初始和不断变化的机械性能对于检测不良裂纹扩展、相变、纹理、微裂纹或其他可能导致灾难性故障的结构/几何不稳定性是必不可少的，特别是当部件在运行时。支持在多个长度尺度、压力、机械载荷和温度下同时进行热机械光谱（TMS）测量的仪器的开发，将首次使材料在近操作条件下进行现场评估的能力能够实现这些知识。该奖项来自主要研究仪器项目，支持中佛罗里达大学开发TMS系统。该系统将在奥兰多的中佛罗里达大学（University of Central Florida）投入使用，用于在不同环境下，在室温或高温的复杂载荷条件下，对各种长度尺度的材料进行原位结构表征和测试。该项目将吸引学生和博士后，他们将成为下一代仪器开发人员。

This Major Research Instrumentation award supports the University of Central Florida (UCF) with the development of a Multi-Scale Thermal-Mechanical-Spectroscopic System (TMS) for in-situ materials characterization, research, and training. The instrument will support simultaneous thermal, mechanical, and spectroscopic (TMS) measurements over multiple length scales, pressures, mechanical loads, and temperatures. The instrument will enable accurate assessment and prediction of material/devices behavior under real-world operating conditions, studies of deformation micromechanics, monitoring structural changes and predicting lifetime, to characterizing materials over macro-/micro-length scales. The instrument will be ideal for capturing previously inaccessible aspects of material behavior under realistic conditions. This instrument development will result in a revolutionary tool with the potential to present new research findings, while spanning a wide range of applications in energy (e.g., turbomachinery), civil infrastructure (e.g., bridges), defense (e.g., high-performance aircrafts, armor). The project presents opportunities for peer-to-peer learning and mentoring of postdocs, and graduate and undergraduate students who will participate in building subsystems and integrating them into the instrument. The exposure to instrument development and integration with a state of the art equipment will enhance the education of the students in practical applications of theoretical designs, provide them with the experience of the design process for high-end instrumentation and expand their research focus to consider in situ techniques to expand existing research areas and lead to new fields of research. The developed system will be available to users at UCF.****Knowledge of initial and evolving mechanical properties of materials and parts is indispensable to detect undesirable crack growth, phase transitions, texturing, microcracking or other structural/geometrical instabilities that can lead to disastrous failure, particularly when components are in operation. The development of an instrumentation that supports simultaneous thermal-mechanical-spectroscopic (TMS) measurements over multiple length scales, pressures, mechanical loads, and temperatures will, for the first time, enable the capability to achieve such knowledge, as materials are evaluated in-situ under near-operational conditions. This award from the Major Research Instrumentation program supports the University of Central Florida with the development of a TMS system. The developed system for in-situ structural characterization and testing of materials on the various length scales under complex loading conditions at room or elevated temperatures in different environments will be available at the University of Central Florida, Orlando. The project will engage students and postdocs who will become the next generation of instrument developers.