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

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.

颗粒诊断在热喷涂领域有着广泛的应用。它们可以通过原位测定自由射流中粒子的状态变量来实现过程监控。通过监测和限制颗粒状态变量的波动，可以保证所制备涂料的质量。然而，基于自由射流中粒子状态变量的沉积速率和沉积效率的原位测定还不是最先进的技术。该项目的目的是开发一种能够原位测定整体颗粒质量流率的方法。沉积速率和沉积效率的原位测定将通过测量撞击基片的颗粒和从基片上反弹的颗粒的质量流量来实现。为了实现这一目标，一个能够确定粒子速度和大小的粒子诊断系统是必要的。在该项目的框架内，HiWatch紧凑型系统将用于此目的。

项目成果

Estimation of Particle Mass Flow Rate in Free Jet Using In-Flight Particle Diagnostics in Plasma Spraying

• DOI: 10.1007/s11666-020-01027-4
• 发表时间: 2020-04
• 期刊: Journal of Thermal Spray Technology
• 影响因子: 3.1
• 作者: K. Bobzin;W. Wietheger;M. Knoch;S. R. Dokhanchi

Determination of local deposition efficiency based on in-flight particle diagnostics in plasma spraying

基于等离子喷涂中飞行粒子诊断的局部沉积效率的确定

• DOI: 10.1016/j.surfcoat.2020.126118
• 发表时间: 2020
• 期刊: Surface & Coatings Technology
• 影响因子: 5.4
• 作者: K. Bobzin;W. Wietheger;H. Heinemann;S. R. Dokhanchi
• 通讯作者: S. R. Dokhanchi