Engineering Research Equipment Grant: High-Speed x-y Positioning System for Nanophase Materials Synthesis

小行星9311075 该奖项是一个高速x-y定位系统，将被纳入现有的设施，用于正在进行的工作，由NSF支持，以证明有能力通过使用新的材料合成技术，提高净形成材料的微观结构。 该技术涉及产生熔融金属液滴流，这些液滴流被引导到温度受控的基底上，在该基底上它们经历快速凝固。 对凝固现象的控制导致对材料微观结构的控制和操纵。 通过结合所提出的高速定位系统，可以细化微结构以呈现纳米级的晶粒尺寸（在至少一个维度上具有100 nm的晶粒）。 近年来，纳米材料的合成引起了科学界的极大兴趣。 与纳米相材料相关的性质，例如增加的热膨胀、降低的密度、增加的强度和比热以及超模量效应，赋予这些材料许多新的工程应用。 所提出的高速定位系统将允许演示与新的材料合成技术的纳米相材料的制造。

9311075 Orme The award is for a high-speed x-y positioning system that will be incorporated in an existing facility which is used in ongoing work supported by NSF to demonstrate the ability to enhance the microstructure of net-formed materials by using the new materials synthesis technique. The technique involves the generation of streams of molten metal droplets that are directed onto a temperature controlled substrate where they undergo rapid solidification. Control of the solidification phenomena leads to control and manipulation of the materials's microstructure. With the incorporation of the proposed high speed positioning system the microstructure can be refined to exhibit grain sizes on a nanoscale (with grains 100nm in at least one dimension). Significant scientific interest is recently directed towards nanophase materials synthesis. Properties which are associated with nanophase materials such as increased thermal expansion, reduced density, increased strength and specific heat as well as a supermodulus effect, have given these materials numerous new engineering applications. The proposed high-speed positioning system will allow the demonstration of the fabrication of nanophase materials with the new materials synthesis technique.