@inproceedings{GonzalezGutierrezTreitlerSpoerketal.,
  author    = {Gonzalez-Gutierrez, Joamin and Treitler, Manuel and Spoerk, Martin and Arbeiter, Florian and Schuschnigg, Stephan and Lammer, Herfried and Lackner, Maximilian and Aburaia, Mohamed and Poszvek, G{\"u}nther and Zhang, Haiguang and Sapkota, Janak and Holzer, Clemes},
  title     = {Carbon fiber reinforced thermoplastics for material extrusion additive manufacturing},
  series = {Conference proceedings of 35th International Conference of the Polymer Processing Society},
  booktitle = {Conference proceedings of 35th International Conference of the Polymer Processing Society},
  pages     = {5},
  abstract  = {In an effort to broaden the engineering applications of material extrusion based additive manufacturing (MEAM), new materials are being developed. Adding carbon-fibers (CF) has been one strategy to increase the mechanical performance of different thermoplastics. One challenge is to determine the amount of CF needed to increase the mechanical performance without affecting the "printability" of the compounds. In this paper, different amounts (10, 15, and 20 vol.\%) of CF were added to recycled polypropylene (rPP) and polyamide 12 (PA12). A compatibilizer was used for rPP, but not for PA12. Filaments for MEAM were extruded from the different compounds and the viscosity as well as the tensile properties were measured and compared to the processed polymeric matrices. It was observed that the viscosities at the angular frequencies relevant for MEAM (100 to 200 rad/s) were not significantly different for rPP+CF compounds, but it was higher for PA12+CF compounds. As expected, the elongation at break significantly decreased with the addition of CF for all compounds. For the composites with an rPP matrix, the Young's modulus and the ultimate tensile strength (UTS) continuously increased as the CF content increased to 20 vol.\%. For PA12-based materials, the Young's modulus and the UTS increased with CF content, but adding more than 15 vol.\% did not further improve these values. Therefore, it was concluded that for PA12 the maximum amount of CF that should be added was 15 vol.\%. Using scanning electron microscopy, it was observed that the CF were homogeneously dispersed in the rPP matrix, but not so well in the PA12 matrix, with fibers being more concentrated towards the rim of the filament. Finally, filaments of rPP, rPP+20CF, PA12 and PA12+15CF were used to print complex geometries by means of MEAM, and it was observed that CF helped to reduce the warpage compared to the unfilled filaments. A potential application of this phenomenon could be the reduction of the bed temperature to develop a more energy efficient MEAM process for semi-crystalline polymers.},
  subject      = {Additive Manufacturing},
  language  = {en}
}
@inproceedings{RauerWoeberAburaia,
  author    = {Rauer, Johannes and W{\"o}ber, Wilfried and Aburaia, Mohamed},
  title     = {An Autonomous Mobile Handling Robot Using Object Recognition},
  series = {Proceedings of ARW \& OAGM Workshop 2019},
  booktitle = {Proceedings of ARW \& OAGM Workshop 2019},
  subject      = {Mobile Robotics},
  language  = {en}
}
@inproceedings{AburaiaLacknerGruenbichleretal.,
  author    = {Aburaia, Mohamed and Lackner, Maximilian and Gr{\"u}nbichler, Hannes and Engelhardt-Nowitzki, Corinna and Markl, Erich and Lammer, H. and Zhang, Haiguang and Wang, J. and Sapotka, J. and Janics, T. and Hailberger, M.},
  title     = {Freeform-FDM process development using natural fibre reinforced biopolymers},
  series = {2nd International Conference on 3D Prinitng Technology and Innovation March 19-20, 2018 London, UK},
  booktitle = {2nd International Conference on 3D Prinitng Technology and Innovation March 19-20, 2018 London, UK},
  subject      = {Freeform Printing},
  language  = {en}
}
@inproceedings{DannerederPachschwoellAburaiaetal.,
  author    = {Dannereder, Florian and Pachschw{\"o}ll, Paul and Aburaia, Mohamed and Markl, Erich and Lackner, Maximilian and Engelhardt-Nowitzki, Corinna and Shooman, Diane},
  title     = {Development of a 3D-printed Bionic Hand with Muscle- and Force Control},
  series = {Austrian Robotics Workshop 2018},
  booktitle = {Austrian Robotics Workshop 2018},
  subject      = {Robotics},
  language  = {en}
}
@inproceedings{WoeberAburaiaOlaverriMonreal,
  author    = {W{\"o}ber, Wilfried and Aburaia, Mohamed and Olaverri-Monreal, Cristina},
  title     = {Classification of Streetsigns Using Gaussian Process Latent Variable Models},
  series = {2019 IEEE International Conference on Connected Vehicles and Expo (ICCVE), Graz, Austria},
  booktitle = {2019 IEEE International Conference on Connected Vehicles and Expo (ICCVE), Graz, Austria},
  subject      = {Streetsigns},
  language  = {en}
}