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WEB Reactive Ni/Al multilayers with 3D Morphologies

Thursday (27.02.2020)
12:54 - 12:54 Poster Room
Part of:
- Poster *web*Smoothing of additive manufactured parts using ns-pulsed laser source 1 Dipl.-Ing. Florian Kuisat
- Poster TBA -
- Poster *web*Combustion Synthesis of High Entropy Alloys thin films 1 Dr. Anni Wang
- Poster *web*Surface macro-smoothing and micro-structuring of additive manufactured components by using DLIP technique for controlling wetting characteristics 1 Dipl.-Ing. Florian Kuisat
- Poster *web*Influence of embedding materials on heat transfer and ignition transfer time in heterogeneous reactive material system 1 Mostafa Baloochi
- Poster TBA -
- Poster *web*Self reactive joining process with multilayer foils in lap joint configuration 1 Marcus Glaser
- Poster *web*Thermodynamics and kinetics of phase formation in magnetron-sputtered Ni/Al multilayer thin films with nanoscale morphology 1 Sascha Sebastian Riegler
- Poster *web*Femtosecond laser approach to cut Ni/Al reactive foils without ignition of a self-propagation reaction 1 Maria Amelia Martins
- Poster *web*Effect of preparation angle on atom probe tomography of reactive multilayers 1 Christian Schäfer
- Poster *web*Reactive Ni/Al multilayers with 3D Morphologies 1 Konrad Jaekel
- Poster *web*Synchrotron radiation X-ray powder diffraction and magnetometric study of natural and synthetic terms of the stannite-kesterite pseudobinary system in the low temperature regime (5-275 K) 1 Dr. Francesco Di Benedetto
- Poster *web*Coating and Drying of Sodium-Ion-Battery Electrodes 1 Julian Klemens
- Poster *web*Analytical prediction model for Direct Laser Interference Patterning 1 Dr. Bogdan Voisiat
- Poster *web*CFD Analysis of joining processes using reactive multilayers on native surface morphologies of microelectronic substrates 1 Erik Wiss
- Poster *web*Top-Hat profile in Direct Laser Interference Patterning: Is it worth it? 1 Mikhael El-Khoury
- Poster *web*Laser-based (“2D”) surface treatment of lithium-ion battery electrodes to improve the rate capability 1 Jens Sandherr
- Poster *web*Microstructure investigation of superconducting NbN thin films on copper 1 Dipl.-Ing. Ying Li
- Poster TBA -
- Poster *web*Laser functionalized PEEK-based coating systems to minimize friction and wear 1 Dr. Tim Kunze
- Poster *web*Structure and Dynamics in a Layered Na-ion Battery Cathode 1 Euan Bassey
- Poster *web*Electrode-Processing using porous nano-structured Na3V2(PO4)3 (NVP) for Sodium-Ion Batteries 1 Luca Schneider
- Poster TBA -
- Poster *web*Experimental Approach for Phase Diagram determination of Li alloys 1 Joel Fels
- Poster *web*Process Integration of Few-Layer MoS2 into a-Si:H Heterojunction pin-Photodiodes for extended Infrared Detection 1 Charles Otieno Ogolla
- Poster *web*Ti3SiC2- and Ti3AlC2-based ceramics synthesis by spark plasma sintering of preceramic paper 1 Elizaveta Sedanova
- Poster *web*Overheating microstructural study of nickel-based superalloys from turbine blades of aircraft engines 1 Dr. Ana Pastor
- Poster *web*Electrochemical thermodynamics of Lithium Batteries and their materials 1 Prof. Dr. Hans Jürgen Seifert
- Poster *web*Corrosion Analysis of a 316L Stainless Steel Gas Outlet Sealed with a Copper Ring Used in the CO2 Methanation Process 1 Ananya Prechavut
- Poster *web*Self-propagating reaction of structured reactive Al/Ni multilayers 1 Yesenia Sauni
- Poster *web*3D structured electrodes for Li-ion batteries using open porous metal foams as current collector for high energy application 1 Jonas Oehm
- Poster *web*Novel air stable single source precursor for homogeneous crystalline TiS2 thin films 1 Anja Sutorius
- Poster *web*Synthesis of nickel-copper composite with controllable nanostructure through facile solvent control as positive electrode for high-performance supercapacitors 1 Dr. Damin Lee
- Poster *web*Towards understanding response generation in conductometric gas sensors 1 Stefan Kucharski
- Poster Effects of 3D electrode design on high-energy silicon-graphite anode materials 1 Yijing Zheng

Session -F: Functional Materials, Surfaces, and Devices
Belongs to:
Topic X: Poster Session

Metallic, multilayered thin film systems are well known for their self-propagating reactions with high heat release. Especially binary or ternary aluminide systems are under research, with a variety of metals such as Hf, Ni, Ru, Pd or Pt that are highly miscible in Al (1). Specifically, the influence of the selection of the metals on the ignition temperature, reaction velocity and the layer thickness is under observations. Some parameter, which influence the reaction, are identified as atomic mobility of the metals, microstructure features, internal stress and deposition conditions(2).The achievable temperatures, during the reaction, are enough to melt solder materials. A possible application could be micro- or nano-joining of chips or micromechanical systems.

The bonding strength between microchips can be enhanced significantly with a 3D-structured surface, e.g. with silicon needles (3). With black silicon it is further possible to hinder the propagation of the reaction, which indicates a starting point to control it (4). In this work, we study the influence of such nanostructured surfaces on thermo-physical properties of the self-propagating reaction. It is expected that the nanostructures influence the bilayer morphology, diffusion path and thus, phase formation and residual stress. We present here some experiments, where a 5 µm thick magnetron sputtered Al/Ni multilayer was used as reactive system, with a bilayer thickness of 25 nm. The deposition took place on a Si (111) substrate. To change the morphology of the surface, we carried out a black silicon RIE etching process before the deposition. Needles with a height of 1 µm were produced and then covered with the aluminide multilayer system. Specifically, the difference between the samples before and after the ignition with rapid thermal processing (RTP) are examined and discussed. The layer morphology before and after treatment is investigated using different methods, such as focused ion beam (FIB) or scanning electron microscope (SEM). These data are compared with information about the phase transformation obtained from XRD studies. In addition, differential scanning calorimetry (DSC) was performed to obtain information regarding the ignition temperature and the heat flow released upon annealing, and compared to that of planar morphologies.


Konrad Jaekel
Technical University of Ilmenau
Additional Authors:
  • Yesenia Sauni
    Technical University of Ilmenau
  • Dr. Heike Bartsch
    Technical University of Ilmenau
  • Sascha Sebastian Riegler
    Saarland University
  • Dr. Isabella Gallino
    Saarland University
  • Prof. Dr. Peter Schaaf
    Technical University of Ilmenau