Atomically locked interfaces of metal (Aluminum) and polymer (Polypropylene) using mechanical friction


Joining different parts is one of the crucial components of designing/engineering of materials. Presently, the current energy efficient low weight automotive and aerospace components consist of a different class of materials, such as metals, polymers, ceramics, etc. Joining these components remains a challenge. Here, we demonstrate metal (aluminum) and polymer (Polypropylene, pp) joining using mechanical friction. The detailed characterization clearly demonstrates that atomically locked interfaces are formed in such joining and no chemical bonds are formed during the joining. Also, a waterproof and strong interface is formed in such a process. Fully atomistic molecular dynamics simulations were also carried out in order to further gain insights on the joining process.

Polymer, 169(148-153)
A. Rout, P. Pandey, E. F. Oliveira, P. A. da Silva Autreto, A. Gumaste, A. Singh, D. S. Galvão, A. Arora, and C. S. Tiwary. “Atomically locked interfaces of metal (Aluminum) and polymer (Polypropylene) using mechanical friction”. Polymer, 169(2019), 148-153.
Arpan Rout
MBA student in Business Management (BM)

Arpan works on joining of dissimilar joining of materials by friction stir welding. Additionally, he is also interested in fabrication of metal matrix composites by friction stir processing. He carries mechanical, microstructural, corrosion and wear studies. Arpan joined our group in 2017 during his M.Tech and thereafter continued as a Ph.D. student.