Since 2022
Associate Researcher at the FHNW Institute of Polymer Engineering
FHNW University of Applied Sciences and Arts Northwestern Switzerland, Brugg-Windisch

2017 - 2022
Research Assistant at the FHNW Institute of Polymer Engineering
FHNW University of Applied Sciences and Arts Northwestern Switzerland, Brugg-Windisch

2018 - 2021
Master of Science in Engineering MSE
FHNW University of Applied Sciences and Arts Northwestern Switzerland, Brugg-Windisch

2014 - 2017
Bachelor of Science in Mechanical Engineering with a specialization in Polymer Engineering
FHNW University of Applied Sciences and Arts Northwestern Switzerland, Brugg-Windisch

2008 - 2013
Apprenticeship as a Design Engineer EFZ
SBB CFF FFS, Olten

LinkedIn

• Google Scholar
  
• ResearchGate
  
• Institutional Repository FHNW
  

Peer-reviewed journals

• Schär, L. Zweifel, D. Arslan, S. Grieder, C. Maurer, C. Brauner. Fused Filament Fabrication of Bio-Based Polyether-Block-Amide Polymers (PEBAX) and Their Related Properties. Polymers, 2022, 14(23), 5092. https://doi.org/10.3390/polym14235092
  

• Zweifel, C. Brauner, K. Ritter. The mechanical characterization of welded hybrid joints based on a fast-curing epoxy composites with an integrated phenoxy coupling layer. Materials, 2022, 15(3), 1264. https://doi.org/10.3390/ma15031264
  

• Zweifel, C. Brauner, J. Teuwen, C. Dransfeld. In-situ characterization of the reaction-diffusion behavior during the gradient interphase formation of polyetherimide with a high-temperature epoxy system. Polymers, 2022, 14(3), 435. https://doi.org/10.3390/polym14030435
  

• Zweifel et al. Experimental and Numerical Development on Multi-Material Joining Technology for Sandwich-Structured Composite Materials. Materials, 2021, 14, 6005. https://doi.org/10.3390/ma14206005
  

• Zweifel, C. Brauner, Investigation of the interphase mechanisms and welding behaviour of fast-curing epoxy-based composites with co-cured thermoplastic boundary layers, Composites Part A: Applied Science and Manufacturing, 2020, 139, 106120. https://doi.org/10.1016/j.compositesa.2020.106120
  

• Brauner, L. Zweifel, S. Nakouzi, J. Tresch, Co-curing behaviour of thermoset composites with a thermoplastic boundary layer for welding purposes, Advanced Composites Letters, 2020. https://doi.org/10.1177/2633366X20902777
  

Conferences

• Zweifel, K. Ritter, C. Brauner. Thermoplastic welding of fibre-reinforced thermoset composites: potential towards more sustainable joining technologies. Sustainable Composite Conference, Composite United Switzerland, 10. November 2022.
  

• Brauner, C. Dransfeld, L. Zweifel. Development of a continuous ultrasonic assisted tape laying process for PEEK/CF on a robotic system. ISCM21, 9th international Symposium on Composites Manufacturing for high performance applications, 3-4 November 2021, Stade, Germany.
  

• Zhilyaev, L. Zweifel, C. Brauner, Experimental and numerical research of the MM-Welding® joining technology for sandwich panels, ITHEC, 5th International Conference and Exhibition on Thermoplastic Composites, 13-15 October 2020, Bremen, Germany.
  

• Brauner, L. Zweifel, C. Dransfeld, M. Rheme, G. Eckhard, J. Mayer, W. Pfister, Joining of multi-material assemblies by the MultiMaterial-Welding technology – Development of an online process monitoring system, ITHEC, 4th International Conference and Exhibition on Thermoplastic Composites, 27-28 October 2018, Bremen, Germany.
  
• Zweifel, C. Brauner, C. Dransfeld, Development of a resistance welding process for thermoset fiber composite components with co-cured thermoplastic boundary layer, ECCM18, European Conference on Composite Materials, 24-28 June 2018, Athens, Greece.