Description:
Abstract
USC researchers have developed a conformable hybrid bond layer that enables cold spray metallization of carbon fiber-reinforced polymers (CFRPs). This solution enhances durability, erosion resistance, and impact resistance of non-metallic surfaces. The bond layer, comprising a metal wire mesh embedded in an adhesive film, facilitates deposition and adhesion mechanisms. It can be applied through co-curing or secondary bonding and is compatible with conventional manufacturing processes.
Benefits and Applications
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Enhances durability, erosion resistance, and impact resistance
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Compatible with conventional manufacturing processes
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Expands possible applications of metallization
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Enables metallization of non-metallic surfaces through cold spray technology
Market Application
Cold spray technology, which enables solid-state material consolidation through high-speed particle impact, is versatile with applications including dimensional restoration, wear- and corrosion-resistant coatings, and additive manufacturing. Its compatibility with thermally sensitive substrates, such as polymers and composites, sets it apart from traditional deposition methods. However, challenges arise when using cold spray on thermoset composites, including erosion and weak adhesion. New technologies are needed to meet the demand for successful metallization with erosion and abrasion resistance.
Publications
Hybrid Bond Layers for Cold Spray Metallization of CFRP Surfaces, Feng et al., 2022.
Stage of Development
- Viable approach developed
- Lug shear and microstructural characterization tested
- Available for licensing