Development of a method for in-situ determination of deposition efficiency in thermal spraying

热喷涂沉积效率原位测定方法的开发

• 批准号: 352196289
• 负责人: Professorin Dr.-Ing. Kirsten Bobzin
• 金额: --
• 依托单位: Institut für Oberflächentechnik (IOT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/352196289?language=en
• 关键词: Development; method; situ; determination; deposition; Development; method; situ; determination; deposition

Particle diagnostics are widely used in the field of thermal spraying. They enable process monitoring through in-situ determination of the state variables of particles in free jet. Through the monitoring and limiting the fluctuations of the state variables of the particles, it is possible to achieve quality assurance of the manufactured coatings. Nevertheless, in-situ determination of the deposition rate and the deposition efficiency based on the state variables of the particles in free jet is not state of the art. The aim of this project is the development of a methodology that will enable the in-situ determination of the holistic particle mass flow rate. The in-situ determination of the deposition rate and the deposition efficiency will be realized by measuring the mass flow rate of the particles that impinge on the substrate and the particles that rebound off the substrate. In order to achieve this, a particle diagnostics system with the ability to determine the particle velocities and sizes is necessary. Within the framework of this project the HiWatch Compact System will be utilized for this purpose.

粒子诊断广泛用于热喷涂领域。它们通过对自由喷气机中颗粒的状态变量的原位确定来启用过程监测。通过监测和限制颗粒状态变量的波动，可以实现对制成品的质量保证。然而，基于自由喷气中粒子的状态变量的沉积速率和沉积效率的原位确定并不是技术的状态。该项目的目的是开发一种方法，该方法将实现整体粒子质量流量的原位确定。通过测量损害基板上的颗粒的质量流速以及反弹基板的颗粒的质量流量，将实现沉积速率和沉积效率的原位测定。为了实现这一目标，有必要确定粒子速度和大小的粒子诊断系统。在此项目的框架内，HiWatch Compact系统将用于此目的。