MRI: Acquisition of an Advanced Nanoindentation System for Multidisciplinary Research and Training

该主要研究仪器奖支持采购最先进的纳米压痕系统，以催化基础研究，从而导致更有弹性的基础设施、新材料、医疗和能源生产的进步，以及增强的车辆和飞机设计。纳米压痕是小尺度力学测量的重要工具；该仪器具有华盛顿大学（UW）或太平洋西北地区不具备的纳米力学表征能力。它将使华盛顿大学和合作学校的多学科研究、教育和推广成为可能。每年将培训超过10名研究助理和50名研究生研究人员，极大地扩展了具有纳米力学表征经验的下一代研究人员。该系统将促进四个区域合作机构的教育项目，并在伯克博物馆举办的年度“与哺乳动物见面”家庭日和华盛顿大学工程学院的“工程发现日”等公共宣传活动。这些活动增进了公众的了解，并有助于吸引下一代从事科学、技术、工程和数学方面的职业。hyysitron TI 980摩擦压头具有低至1nn力和0.01 nm位移的超低噪声，配备了强大的多头底座，能够无缝操作多种测量模式，如纳米压痕、纳米划痕和纳米磨损。该系统与高温、高/低负载、导电和浸没压痕选项相结合，将使研究人员能够从能源和健康的纳米和分子水平，到航空航天和基础设施更新的微观和更大尺度，追求先进的知识。它将使工程师能够研究生物、胶凝和颗粒材料、复合材料、金属和聚合物，并使医学、健康科学和牙科研究人员能够研究细胞、组织到整个器官的生物力学。它将促进对脉冲激光强化金属多层，纳米螺旋铁磁机器人执行器的性能，半导体有机聚合物，高温复合材料和聚合物复合传感器的机械性能的基本理解。该仪器还将使旨在延长下一代锂离子电池电极材料耐久性的研究成为可能。最后，新的研究将可能涉及硬组织与年龄相关的降解策略，改善硬组织的粘接键，以及由淀粉原衍生肽辅助的硬组织再矿化。该系统将成为华盛顿大学和大太平洋西北地区研究人员的主要区域资源。

This Major Research Instrumentation award supports the acquisition of a state-of-the-art nanoindentation system to catalyze fundamental research leading to more resilient infrastructure, novel materials, advances in medical treatment and energy production, and enhanced vehicle and aircraft design. Nanoindentation is an important tool for measuring mechanics at a small scale; this instrumentation has nanomechanical characterization capabilities that are not available at the University of Washington (UW) or the Pacific Northwest. It will enable multidisciplinary research, education and outreach at the UW and partner schools. More than 10 research associates and 50 graduate researchers will be trained on the instrument annually, greatly expanding the next generation of researchers with nanomechanical characterization experience. The system will facilitate educational programs at four regional partner institutions and public outreach events in the annual "Meet the Mammals" family day at the Burke Museum and "Engineering Discovery Days" of the UW College of Engineering. These activities enhance public understanding and help to attract the next generation to careers in science, technology, engineering and math. The Hysitron TI 980 Triboindenter, with an ultra-low noise floor down to 1 nN force and 0.01 nm displacement, is equipped with a powerful multi-head base capable of seamlessly operating multiple measurement modes such as nanoindentation, nanoscratch, and nanowear. Complemented with high temperature, high/low load, conductive and submerged indentation options, the system will enable researchers to pursue advanced knowledge from the nano and molecular levels in energy and health, to the micro and larger scales in aerospace and infrastructure renewal. It will enable engineers to study biological, cementitious and granulated materials, composites, metals and polymers, and medical, health science and dental researchers to investigate the biomechanics of cells, tissues to whole organs. It will facilitate fundamental understanding in pulsed-laser strengthening of metallic multi-layers, the properties of nanohelical ferromagnetic robotic actuators, and the mechanical performance of semiconducting organic polymers, high temperature composites, and polymer composite sensors. The instrument will also enable studies aimed at extending the durability of next-generation li-ion battery electrode materials. Lastly, new research will be possible regarding strategies for age-related degradation of hard tissues, for improving adhesive bonds to hard tissues, and for remineralizing hard tissues assisted by amelogenin-derived peptides. The system will become a major regional resource to researchers at the University of Washington and the greater Pacific Northwest.