About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
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Energy Materials for Sustainable Development
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Presentation Title |
Carbon Fiber Structural Composites as Flat Inductors, with Relevance to Induction-Based Energy Devices |
Author(s) |
Sruthi Sree Krishnaswamy Narayanan, Deborah D.L. Chung |
On-Site Speaker (Planned) |
Sruthi Sree Krishnaswamy Narayanan |
Abstract Scope |
This paper reports the inductance of continuous 0°/90° biaxially woven carbon fiber polyamide-matrix structural composites, with relevance to using composite structures as inductors (e.g., for transformers and induction-based energy devices). The composites are flat laminates, without bending or coiling. The inductance (4.7 μH/m, much above 0.49 μH/m calculated based on the dimensions) stems from the microstructure (fiber waviness and consequent fiber-fiber contacts within a tow). The inductance and the ratio of the measured to calculated inductance (≤9.6) increase with the number of laminae, due to the interlaminar fiber-fiber contact causing the laminate to approach a single inductor rather than inductors in parallel. The inductance increases with increasing inter-electrode distance. The inductance is higher in the 45°-direction than the 0°-direction by ≤60%, due to the 0°-90° zigzagging of the net 45° path, and the path crossing the tow-tow interface in each zigzag. |