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Investigation of optical and mechanical properties of gold-coated polycarbonate and cast acrylic transparent composites for aerospace applications
Makaraci, Enes Yeasmin, Farzana Todmal, Purva Gungor, Ali Asmatulu, Eylem Kaybal, Halil Burak Bahceci, Ersin Bakir, Mete Asmatulu, Ramazan
Makaraci, Enes
Yeasmin, Farzana
Todmal, Purva
Gungor, Ali
Asmatulu, Eylem
Kaybal, Halil Burak
Bahceci, Ersin
Bakir, Mete
Asmatulu, Ramazan
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2025-03-07
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Conference paper
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Keywords
Transparent polymers,Polycarbonate (PC),Cast acrylic (CA),Gold coating,Optical transmittance
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Citation
Makaraci, E., Yeasmin, F., Todmal, P., Gungor, A., Asmatulu, E., Kaybal, H. B., Bahceci, E., Bakir, M., & Asmatulu, R. (2025). Investigation of optical and mechanical properties of gold-coated polycarbonate and cast acrylic transparent composites for aerospace applications. In Proceedings of the 31st International Conference on Industry, Engineering and Management Systems (IEMS), 31, 8-21. AIEMS Inc. https://doi.org/10.62704/10057/31306
Abstract
Transparent polymers like polycarbonate (PC) and cast acrylic (CA) are widely used in aerospace due to their light weight, impact resistance, and optical clarity. However, there is limited information on how coatings affect their mechanical and optical properties. This study aims to assess the impact of heat treatment and gold coatings on the hardness and light transmittance of PC and CA. PC was cut using waterjet, and CA was laser-cut. After cutting, both materials underwent heat treatment at 150°C, followed by gold coating using magnetron sputtering. Vickers hardness tests and optical transmittance measurements were used to analyze the results. Key findings show that heat treatment increased the hardness of CA by 15.6% and PC by 16.9%. Gold coating further boosted hardness by 13.8% for CA and 20% for PC. In terms of light transmission, uncoated CA allowed over 90% of visible light through, which dropped to 30-70% after coating. Similarly, PC's transmittance fell from 90% to 20-50% after coating. The gold coating also provided effective UV protection for both materials. These improvements in hardness and UV protection make coated PC and CA promising materials for aerospace applications.
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Description
Published in SOAR: Shocker Open Access Repository by Wichita State University Libraries Technical Services, November 2025. 2025 IEMS Officers: Gamal Weheba (Conference Chair); Hesham Mahgoub (Program Chair); Dalia Mahgoub (Technical Director); Ed Sawan (Publications Editor); Wilfredo Moscoso (Proceedings Editor); Abdulaziz G. Abdulaziz (Associate Editor)
Publisher
Industry, Engineering & Management Systems Conference
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Series
Proceedings of the 2025 IEMS Conference, v.31
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2690-3210 (print)
2690-3229 (online)
2690-3229 (online)