About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Special Session
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Presentation Title |
Selective Doping of Composites Using Piezoelectric Printheads |
Author(s) |
Ali Sohaib, Jared Allison, Hongtao Song, Carolyn Seepersad, Christopher Tuck, Richard Hague, Joseph J. Beaman |
On-Site Speaker (Planned) |
Ali Sohaib |
Abstract Scope |
The use of Radio frequencies (RF) for heating and manufacturing of composite materials has been extensively used and studied. However, leveraging its use in AM is relatively new as it requires control and understanding of numerous factors that affect conversion of EM energy to thermal energy inside the composite. Among them, the electrical conductivity of particles, particle size and distribution are important as they determine the temperature range and gradients once the composite is subjected to RF. Use of piezoelectric printheads for selective deposition of conductive nanoparticles in a composite allows control over temperature gradients while maintaining high production speeds compared to other AM methods. However, the limited particle loading in the inks and the inhibition of heating due to solvents makes the standard layer-by-layer fabrication non-viable. This study looks at overcoming the issues inherent to piezoelectric jetting and evaluates new processes for fabrication of composites suitable for RF heating. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |