| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
2024 Undergraduate Student Poster Contest
|
| Presentation Title |
SPU-22: Design of Silicone Composites with Controlled Hardness |
| Author(s) |
Pia Piazzi, Ashoka Tholangamuwe Gedara, Irina Molodetsky |
| On-Site Speaker (Planned) |
Pia Piazzi |
| Abstract Scope |
The Young’s modulus and hardness are defining material characteristics that become complex to measure in composite materials due to their heterogeneity. Determination and control of these mechanical properties are crucial for optimizing the performance of composites in various applications requiring lightweight yet structurally and thermally stable materials. To address this challenge, ultrasonic testing was employed to characterize the Young’s modulus of several silicone-based composites. This technique involved analyzing sound wave propagation through the composites, specifically measuring the time delay between the transmission and reception of ultrasonic pulses. By correlating these time delays with material properties, a Young's modulus was determined for each variation of the composite medium and evaluated for error. Similarly, the hardness of each composite was determined using a digital shore hardness tester. The results outline an ongoing methodology for using ultrasonic testing to assess the mechanical properties of synthesized composite materials, providing valuable insights for material characterization. |