Acquisition of an Interfacial Force Microscope (IFM) for Nano-structured Materials, Ultra-precision Manufacturing, and Nanomechanics Research

这笔核磁共振成像赠款支持购买界面力显微镜(IFM)。IFM使用自平衡力传感器，由于力的测量与位移测量无关，因此可以精确地测量力。IFM能够探测从原子级到微米级的聚合物和纳米结构材料等材料的热机械行为，力范围在1 NN到500微N之间。该新设备将能够表征纤维或纳米颗粒附近的基质中的杨氏松弛模数和纳米泡沫中的纳米颈，以及纳米颗粒/基质界面处的界面强度和不同温度下粘合剂的粘接强度。该设备还将能够研究晶体缺陷中的短程力、纳米滑动和纳米摩擦学、纳米级裂纹的萌生和扩展，以及内聚力牵引分离定律。收购IFM将增强俄克拉荷马州的研究竞争力。IFM将用于本科生和研究生的研究性研究和实验室演示。该仪器将作为研究设施的一部分，供俄克拉荷马纳米网的研究人员和研究生使用。

This MRI grant supports the acquisition of an Interfacial Force Microscope (IFM). The IFM uses self-balanced force sensor so that force can be measured precisely as its measurement is independent of displacement measurement. The IFM is capable of probing the thermo-mechanical behavior of such materials as polymers and nano-structured materials from atomistic to micrometer scales with a force range between 1 nN and 500microN over a range of temperatures. The new equipment will allow the characterization of the Young's relaxation modulus in the matrix near fibers or nanoparticles and the nano-necks in nanofoams, and interfacial strength at the interface of nanoparticle/matrix and the bonding strength of adhesives at different temperatures. The equipment will also enable investigation of the short-range forces in crystal imperfections, nanosliding and nanotribology, nanoscale crack initiation and propagation, and cohesive traction separation law. The acquisition of the IFM will enhance the research competitiveness of the State of Oklahoma. The IFM will be used in research studies and in laboratory demonstration for both undergraduate and graduate students. The instrument will be included as part of the research facilities for use by researchers and graduate students on the Oklahoma NanoNet.