Tohoku University Technology:Provide carbon fiber reinforced plastics with good metal coating adhesion: T22-150
Manufacturing method of metal-coated fiber reinforced plastics
Carbon fiber reinforced plastics (CFRP) are used in many fields because of its light weight, high strength and corrosion resistance. However, CFRP is known to have low electrical conductivity. So when it is used in aircraft fuselage as example, there is a risk of damage due to lightning strike. Therefore, increase conductivity by forming a metallic film on the CFRP surface (metallization) is expected as a method to solve this issue. The cold spray method, which can be applied at low temperature with only little damage to CFRP, is attracting attention as a metallization method. Preliminary study has examined a method of forming metallic coating consisting of tin [1][2]. However, tin/CFRP interface has low adhesion strength. The methods to improve adhesion strength have been developed, such as the use of additive or surface treatment of CFRP, but they are not industrially ideal due to cost. This invention is about metal-coated CFRP with improved adhesion strength by using a simple method that does not require pre-treatment or post-treatment, and its manufacturing method.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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