Influencing the arc behavior in cascaded single-arc DC plasma generator (DC-EKEAPG) to improve process stability and coating properties

影响级联单弧直流等离子发生器 (DC-EKEAPG) 中的电弧行为，以提高工艺稳定性和涂层性能

• 批准号: 336061514
• 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 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/336061514?language=en
• 关键词: Influencing; arc; behavior; cascaded; single

The cascaded single-arc plasma generators (DC_EKEAPG) are gaining more importance for industrial use. This is partly related to their simpler construction and significantly lower procurement costs compared to multi-arc systems. Moreover, cascaded single-arc plasma generators promise significant improvements in process stability and coating quality compared to the conventional plasma generators, resulting from the use of neutrodes and the limited motion degree of freedom of the arc in these generators. Although the cascaded DC_EKEAPGs are gaining more importance in industrial applications, the plasma behavior within this concept has not been examined in depth in literature regarding the arc instabilities and fluctuations. Furthermore, a deliberate manipulation or influencing of the arc in cascaded DC_EKEAPGs has been investigated only in a few studies. Therefore, numerical and experimental studies, which serve to explain the physical relationships in a cascaded DC_EKEAPG and to increase understanding of the process, will be the subject of the proposed project. Based on these studies, an increase in process stability and an improvement in properties of coatings applied with this process, will be aimed by externally influencing the arc behavior.

级联式单弧等离子体发生器（DC_EKEAPG）在工业应用中越来越受到重视。这部分是因为与多弧系统相比，它们的结构更简单，采购成本更低。此外，与传统的等离子体发生器相比，级联单弧等离子体发生器在工艺稳定性和涂层质量方面有显著改善，这是由于这些发生器中使用了中子和电弧的有限运动自由度。虽然级联dc_ekeapg在工业应用中越来越重要，但关于电弧不稳定性和波动的等离子体行为尚未在文献中得到深入研究。此外，在级联DC_EKEAPGs中，故意操纵或影响电弧的研究仅在少数研究中进行了调查。因此，用于解释级联DC_EKEAPG中的物理关系并增加对该过程的理解的数值和实验研究将是拟议项目的主题。基于这些研究，将通过外部影响电弧行为来提高工艺稳定性和涂层性能。