MORE | Summer 2021

Manufacture of 3D Printed Composite Structures via Multiphase Direct Ink Writing

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Although additive manufacturing is a rapid prototyping technology, the printing resolution for most commercial printers are limited to microscales, especially the lack of high-resolution structural control in the case of polymer/nanocomposites. This research study demonstrated the efficient technology for 3D printing nanocomposites using multiphase direct ink writing (MDIW), a printer designed and assembled in-house. By matching the viscosity of the pure PVA solution and PVA/carbon nanotubes solution, layers in the order of 2n+1 (where n is the number of multipliers in the printing system) are printed and the structure showed the improved strength, modulus, and toughness than the conventional ones.

Student researcher

Mounika Kakarla

Mounika Chowdary Kakarla

Materials science and engineering

Hometown: Kakinada, Andhra Pradesh, India

Graduation date: Fall 2021

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