Deposition of the system Mo-N-(Ag) by using highly-ionized PVD methods and its investigation with regard to high performance wear protection and electrical sliding contact

采用高离子化 PVD ​​方法沉积 Mo-N-(Ag) 系统及其高性能磨损防护和电滑动接触的研究

• 批准号: 354352022
• 负责人: Dr. Martin Fenker
• 金额: --
• 依托单位: Forschungsinstitut Edelmetalle und Metallchemie (fem)
• 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 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/354352022?language=en
• 关键词: Deposition; system; Mo; Ag; using

With the constraint of energy efficiency, materials are forced to the border of resilience. The combination of high temperature and mechanical wear for example is a heavy-duty mechanical process. Diamond-like carbon (DLC) coatings are of limited suitability for this application. Coatings on the basis of Mo-N seem to be more promising. Additionally, the system Mo-N-(Ag) which will be developed within the project, has certain relevance as coating material for electrical sliding contacts for the industrial sector of German electrical power industry. These coatings have the potential to fulfill the requirements with respect to power density for the electrical power supply.High performance wear protecting coatings made from Mo-N or from the less studied system Mo-N-Ag, respectively, show low friction coefficients due to the formation of the lamellar MoO3 phase, Magnéli phases or Ag molybdate phases. For the first time three different PVD techniques - dc magnetron sputtering (dcMS), high power impulse magnetron sputtering (HiPIMS) and pulsed laser deposition (PLD) - are utilized in parallel for the synthesis of those coatings. These techniques differ drastically with respect to the ionization degree of the sputtered species and to the ionization/dissociation degree of the N2 gas. The coating properties of the system Mo-N-(Ag) can be tailored by the control of the plasma conditions. The essential scientific-technological goals are the demanding deposition of stoichiometric Mo-N coatings, the development of new high performance Mo-N-(Ag) coatings by alloying with silver and the optimization of appropriate electrical and mechanical-tribological properties.Finally, a systematic understanding of the performance of the coating systems will be achieved by acquiring the plasma and coatings properties and by correlating them with each other. The obtained results will serve for the setting up of an empirical model for the tribological and electrical behavior of Mo-N-Ag coatings. The project will deliver an important contribution to the question of how much ionization in combination with kinetic energy do we need for the film-forming species to tailor selectively coating properties like for example to be able to control the stoichiometry of Mo-N.

在能源效率的限制下，材料被迫延伸到弹性的边界。例如，高温和机械磨损的结合是重型机械过程。钻石样碳（DLC）涂料适合此应用。基于Mo-N的涂料似乎更有前途。此外，将在项目中开发的系统Mo-N-（ag）具有一定的相关性，作为德国电力行业工业部门的电动滑动接触的涂料材料。这些涂层有可能满足电源的电源密度的要求。高性能磨损保护由Mo-N制成的涂料或分别受烟工的MO-N-AG制成的涂层，由于层状MOO3相，Magnéli相或Ag Ag Ag Molybdate阶段的形成而显示出低的摩擦系数。首次在合成这些涂层的合成中并行使用了三种不同的PVD技术 - DC磁控溅射（DCMS），高功率脉冲磁控溅射（HIPIMS）和脉冲激光沉积（PLD）。这些技术相对于溅射物种的电离程度以及N2气体的电离/离子化度急剧不同。系统mo-n-（ag）的涂料特性可以根据血浆条件的控制来量身定制。必不可少的科学技术目标是对化学计量的涂层的苛刻沉积，通过与银合金合金合金的新高性能Mo-N-（Ag）涂层的开发以及对合适的电气和机械性教度特性的优化。通过在获得涂层系统的性能中，可以通过将其与等离子和涂层的层面和涂层的层面相处融合来实现。获得的结果将用于建立Mo-N-Ag涂层的摩擦学和电气行为的经验模型。该项目将为膜形成物种选择与动能的电离与动能相结合的问题做出重要贡献，以选择性地涂覆特性，例如能够控制Mo-N的化学计量。