About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Lightweight Composites, Materials & Alloys
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| Presentation Title |
Effect of 3D fiber architecture on the internal microstructure and dynamic mechanical properties of multi-directional Cf-SiCm composites |
| Author(s) |
Shibayan Roy, Arjun Mahato, Samar Mondal, Saurav Kumar Sahoo, M Thangarasu |
| On-Site Speaker (Planned) |
Shibayan Roy |
| Abstract Scope |
Addition of multidirectional reinforcement in Cf-SiCm composites improve thermal and mechanical uniformity, thereby making them well-suited for complex loading condition under severe thermal shock of propulsion and hypersonic environment. In the present study, Cf-SiCm composites having carbon fibers in 1D, 2D, 3D, 4D architectures were fabricated by liquid silicon infiltration method. X-ray micro computed tomography (µ-CT) scans were performed to evaluate 3D internal microstructure along with volume fractions of various phases. Cf-SiCm compsoites conatain increasingly complex fiber orientations with increasing fiber directions along with prominent and complex network of pores at the intersections of carbon fibers . The influence of fiber orientation on the dynamic properties (storage and loss modulus plus tanδ) were examined by conducting dynamic mechanical tests in three-point bending mode at temperature sweep between room up to 800oC and frequency sweep (from 1 Hz to 100 Hz) at room temperature and 800°C. |