Engineering Research Equipment Grant: Laser Processing of Ceramics, Composites and Metals

要求为购买可视化系统提供部分支持，该系统包括：(1)铜蒸气激光闪光灯与高速ICCD相机相结合，以及（ii）红外成像系统。该设备将大大提高PI研究高功率激光束与固体材料（切割、钻孔、成型、焊接、连接）之间相互作用的基本机制的能力。一个研究陶瓷切割和成型的研究项目目前得到美国国家科学基金会的支持，但该项目缺乏诊断设备。所要求的高速摄像机将允许探测和量化羽流中的碎片，测量表面的回归和碎片的重新沉积，裂缝的开始和扩展以及钥匙孔的形成和坍塌。红外系统将允许确定温度图。总之，这些设备将构成研究激光-材料相互作用过程的有力工具。

Partial support is requested for the purchase of a visualization system, consisting of (1) a copper vapor laser flash combined with a high speed ICCD camera, and (ii) an infrared imaging system. The equipment will greatly improve the PI's ability to study the basic mechanisms governing the interaction between high powered laser beams and solid materials that are being processed (cutting, drilling, shaping, welding, joining). A research program studying the cutting and shaping of ceramics is under current NSF support, but the program suffers from lack of diagnostic equipment. The requested high speed camera will permit detection and quantification of debris in the plume, measurement of regression of surface and re-deposition of debris, the onset and propagation of cracks and formation and collapse of the keyhole. The infrared system will permit the determination of temperature maps. Together, the equipment will constitute a powerful tool for the study of laser-material interaction processes.