POWRE: Integrated Modeling and Diagnostic Analysis for HVOF Thermal Spray Process

该power提案描述了对高速氧燃料（HVOF）热喷涂过程进行联合建模和诊断分析研究的探索性工作。主要研究工作有：(1)建立HVOF喷涂过程的理论和模型；(2)进行HVOF喷雾实验；（三）利用本项目或者其他项目的实验资料对模型进行验证；(4)参观爱达荷州国家工程与环境实验室（INEEL）等机构的热喷涂实验室，学习热喷涂过程的先进诊断技术。将开发一个数值模型，可以连接粒子/射流相互作用和液滴/衬底相互作用。探索性实验将利用位于Stony Brook的美国国家科学基金会热喷雾研究中心现有的设备，对三种粉末材料进行实验：陶瓷（Al2O3）、金属陶瓷（WC-Co）和金属（Co）。在飞行过程中，粒子的速度、温度和尺寸以及涂层的演变将被获取，数据将用于验证模型。因此，该模型可以进一步发展并应用于热喷涂工艺的设计和控制。PI将访问国家实验室和其他研究所，建立合作关系，并探索热喷雾研究的先进非侵入性诊断技术，如瑞利和相干汤姆逊散射和相干反斯托克斯拉曼光谱。拟议的教育活动的主要目的是吸引学生学习科学和工程，激励他们进行高级学习和多学科研究，并为他们在工程方面的职业发展做好准备。

AbstractCTS-0074589Lili Zheng, SUNY Stony BrookThis POWRE proposal describes the activities to conduct exploratory work on the combined modeling and diagnostic analysis research for the High Velocity Oxygen Fuel (HVOF) thermal spray process.The primary research activities are: (1) developing theory and models for the HVOF spraying process; (2) conducting HVOF spray experiments; (3) validating the models using the information obtained from the experiments conducted during this program or from other programs; and (4) visiting the thermal spray laboratory at Idaho National Engineering and Environmental Laboratory (INEEL) and other institutions to learn advanced diagnostic techniques for thermal spray processes.A numerical model will be developed that can connect the particle/jet interaction and the droplet/substrate interaction. Exploratory experiments using existing facilities at the NSF Center for Thermal Spray Research at Stony Brook will be conducted for three types of powder materials: ceramic (Al2O3), cermet (WC-Co) and metal (Co). The particle velocity, temperature and size during in-flight and the evolution of the coating layers will be acquired and data will be used for validating the model. Thus the model can be further developed and applied to designing and controlling thermal spray processes in the future. The PI will visit national laboratories and other institutes to establish the collaborative relationship and explore advanced non-intrusive diagnostic techniques for thermal spray research such as Rayleigh and Coherent Thomson Scattering and Coherent Anti-Stokes Raman Spectroscopy.The main objective of the proposed educational activities is to attract student to science and engineering, to motivate them for advanced studies and multidisciplinary research, and to prepare them for career advancement in engineering.