Reactive metallic microparticles for thermal joining applications

用于热连接应用的反应性金属微粒

• 批准号: 376550608
• 负责人: Professor Dr.-Ing. Michael Friedrich Zäh
• 金额: --
• 依托单位: Lehrstuhl für Betriebswissenschaften und Montagetechnik
• 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/376550608?language=en
• 关键词: Reactive; metallic; microparticles; thermal; joining

Reactive systems consisting of aluminium (Al) and nickel (Ni) have the unique ability to generate reaction temperatures of up to 1500 °C for a few milliseconds when exposed to an external energy source. This thermal reaction energy can be used to join via welding, bonding, or adhesion. These systems are commercially available only in the form of nanofoils. There are several disadvantageous characteristics of the nanofoils for joining processes, including the brittle nature of the material and the limitation of applications to planar geometries. To address these restrictions, the objective of this research project is to develop and characterize a new, more flexible format of applying the beneficial reaction properties of Al-Ni systems in joining applications, namely microparticles. To facilitate joining via Al-Ni particles in production engineering, a holistic approach is pursued. Detailed investigations on wet-chemical and mechanical synthesis of reactive microparticles provide the basis. In order to attain profound process understanding for thermal joining applications, reactive microparticles are characterized regarding their properties prior to, during, and after the activation of the reaction via microwave energy. The identified effects and interdependencies allow to draw conclusions about the two distinct synthesis routes and form the basis for the modelling of process behaviour.

由铝 (Al) 和镍 (Ni) 组成的反应系统具有独特的能力，当暴露于外部能源时，可在几毫秒内产生高达 1500 °C 的反应温度。这种热反应能量可用于通过焊接进行连接。这些系统仅以纳米箔的形式商业化，对于连接过程来说，纳米箔有一些不利的特性，包括材料的脆性和特性。为了解决这些限制，该研究项目的目标是开发和表征一种新的、更灵活的形式，以促进在连接应用中应用铝镍系统的有益反应特性，即微粒。在生产工程中通过 Al-Ni 颗粒进行接合，对反应性微粒的湿化学和机械合成进行了详细研究，为深入了解热接合应用的工艺提供了基础，并对反应性微粒进行了表征。先验属性通过微波能量激活反应时、期间和之后，所确定的效应和相互依赖性可以得出关于两种不同合成路线的结论，并形成过程行为建模的基础。

项目成果

Investigation of reactive bimetallic Ni-Al particles as a heat source for microwave-assisted joining

反应性双金属镍铝颗粒作为微波辅助连接热源的研究

• DOI: 10.1016/j.jmatprotec.2020.116637
• 发表时间: 2020-08-01
• 期刊: Journal of Materials Processing Technology
• 影响因子: 6.3
• 作者: S. Grohmann;G. Langhans;A. Reindl;V. Sidarava;M. F. Zaeh
• 通讯作者: M. F. Zaeh

Characterisation of the activation and reaction behaviour and determination of the emissivity of reactive nickel-aluminium particles with regenerated fibre Bragg gratings

用再生光纤布拉格光栅表征活性镍铝颗粒的活化和反应行为并测定其发射率

• DOI: 10.1088/1757-899x/480/1/012024
• 发表时间: 2019
• 期刊: IOP Conference Series: Materials Science and Engineering
• 作者: Grohmann; S.;Lindner; M.;Langhans; G.;Roths; J.;Zaeh; M. F.
• 通讯作者: M. F.

Electroplating of aluminium microparticles with nickel to synthesise reactive core-shell structures for thermal joining applications

用镍电镀铝微粒以合成用于热连接应用的反应性核壳结构

• DOI: 10.1088/1757-899x/373/1/012008
• 发表时间: 2018
• 期刊: IOP Conference Series: Materials Science and Engineering
• 作者: Schreiber; S.;Zaeh; M. F.
• 通讯作者: M. F.

Joining composite materials with reactive nickel-aluminium particles as an innovative additive in epoxy-based adhesives

将复合材料与活性镍铝颗粒连接，作为环氧基粘合剂的创新添加剂

• DOI: 10.1088/1757-899x/480/1/012011
• 发表时间: 2019
• 期刊: IOP Conference Series: Materials Science and Engineering
• 作者: Grohmann; S.;Friedrich; M.;Zaeh; M. F.
• 通讯作者: M. F.

Investigation of the Cause-Effect Relationships between the Exothermic Reaction and the Microstructures of Reactive Ni-Al Particles Produced by High Energy Planetary Ball Milling

高能行星球磨反应放热反应与反应镍铝颗粒微观结构的因果关系研究

• DOI: 10.3390/met11060876
• 发表时间: 2021
• 期刊: Metals
• 影响因子: 2.9
• 作者: Bernauer; C.;Grohmann; S.;Angermann; P.;Dickes; D.;Holzberger; F.;Amend; P.;Zaeh; M. F.
• 通讯作者: M. F.