Acquisition of a Data Analysis System for Droplet Research

这个数据分析系统将专门用于支持加州大学欧文分校化学与生物化学工程系和机械与航空航天工程系的工程材料研究。购买这种最先进的设备将用于支持几个正在进行的喷射成形加工和控制液滴沉积制造的研究项目。该设备将证明，所提出的数据分析系统所进行的先进研究是新颖的，有助于提高我们对材料的加工微观结构、力学性能和喷射成形和控制液滴沉积加工中的协同作用的理解。这是喷雾沉积技术未来发展的一个重要领域。此液滴分析设备将用于机械和土木工程专业学生的初级实验课程。这将使学生能够可视化与制造过程中变形液滴相关的复杂动力学，并将直接影响大约15名研究生的研究活动。学生将利用所要求的数据分析系统来研究如下所述的各种重要的基本现象。首先，在使用喷雾雾化和沉积技术制造金属基复合材料过程中，雾化液滴和陶瓷颗粒之间发生的相互作用。特别感兴趣的将是研究复合液滴与衬底的碰撞。此外，所生成的数据将为离散液滴过程中孔隙产生的机制提供非常有用的见解，并将用于在使用受控液滴沉积的网状制造过程中进行液滴凝固和扩散的参数化研究。液滴变形和撞击的细节在实验上是未知的。得到的实验数据对于验证现有的理论模型将是非常有用的。所产生的信息将影响许多离散液滴制造工艺，包括但不限于：等离子喷涂、喷雾雾化和沉积、受控液滴工艺电弧喷涂等。我们将深入了解在使用离散液滴工艺制造结构材料过程中控制孔隙度演变的机制。孔隙率是阻碍涉及离散液滴的制造工艺商业化开发的最关键现象之一。＊＊＊

9503727 Lavernia This data analysis system will be dedicated to support materials research in engineering at the University of California, Irvine, in the Department of Chemical and Biochemical Engineering, and Department of Mechanical and Aerospace Engineering. The purchase of this state-of-the-art equipment will be used to support several ongoing research programs of spray forming processing and controlled droplet deposition manufacturing. This equipment will demonstrate that the advanced studies made possible by the proposed data analysis system are novel and useful for enhancing our understanding of the processing microstructure mechanical properties synergism in spray forming and controlled droplet deposition processing of materials. This is an important area for future advances in spray deposition. %%% This droplet analysis equipment will be used in required junior level laboratory courses for mechanical and civil engineering students. This will allow the students to visualize the complex dynamics associated with deforming droplets during manufacturing, and will directly impact the research activities of approximately fifteen graduate students. Students will utilize the requested data analysis system to study a variety of important fundamental phenomena described as follows. First, the interactions that occur between atomized droplets and ceramic particles during the manufacture of metal matrix composites using spray atomization and deposition. Of particular interest will be the study of the impingement of the composite droplets with the substrate. Also, the data generated will provide very useful insight into the mechanisms of porosity generation in discrete droplet processes, and will be used to conduct parametric studies of droplet solidification and spreading during net form manufacturing using controlled droplet deposition. The details of droplet deformation and impingement are experimentally unknown. The experimental data obtained will be extremely useful il validating existing theoretical models. The information generated will impact a number of discrete droplet manufacturing processes, including but not limited to: plasma spraying, spray atomization and deposition, controlled droplet processes arc spraying, and others. We wil gain insight in to the mechanisms that govern the evolution of porosity during the manufacturing of structural materials using discrete droplet processes. Porosity represents one of the most critical phenomena hindering the commercial exploitation of manufacturing processes that involve discrete droplets. ***