Jun 22, 2021 |
Nano-barrier coating can increase the performance of composites for space applications
(Nanowerk News) Composites are widely used in aerospace, and thanks to their lightweight and ultra-strong properties they are set to increase their dominance in the sector. However, composites strength and stability can be hampered by moisture absorption, mechanical impacts and external environments.
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In a paper published by iScience-Cell Press journal ("Increasing the robustness and crack resistivity of high-performance carbon fiber composites for space applications"), the research team from Surrey and Airbus detail how they have developed a multi-layered, nano-barrier material that can be used on large and complex 3-D engineering composite structures, thanks to a custom-built deposition system at the University of Surrey.
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When applied, the nano-barrier bonds with the spacecraft structure and can significantly strengthen the composite material and protect it from moisture and outgassing effects. This ensures ultra-high material stability and improves crack resistance.
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The team is now working on the next stage of the project, leading to industrialisation of the technology to enable treatment of upcoming Earth observation, navigation and science missions.
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Professor Ravi Silva, Director of the Advanced Technology Institute (ATI) at the University of Surrey, said: “Our unique nano-barrier coating is the result of a nearly decade-long partnership between the ATI and Airbus. We are in the process of testing our exciting barrier on large complex structures set to be deployed to space.
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“The possibilities for this innovation reach far beyond space structures, however; we see a future where our barrier will have a variety of protective terrestrial applications.”
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