NICOP - Bio-inspired self-healing materials based on ceramic-polyurethane hybrid composites
Abstract
Our objective is to design a new family of self-healing ceramic-based composites inspired in the unique structure and performance of natural composites such as bone and nacre. We will replicate nature’s strategy by using a simple but effective design concept based on brick-and- mortar, nacre-like structures in which hard, inorganic bricks are bonded by thin, soft self-healing interfacial layers. We plan to proof that this nacre’s design can be translated into model materials able to self-repair, by combining self-healing interfaces build from poly(urea- urethanes) with the assembly of ceramic bricks with structure designed at nano to micro-levels using additive manufacturing technologies. By confining the soft component in very thin layers and promoting interfacial crack propagation during fracture, it should be possible to retain high strength, increase toughness and achieve repeated, complete and fully autonomous healing. These goals are consistent with the US DoD S&T priority on Materials and Manufacturing Processes and with the US Naval and Marine Corp St&T focus areas on advanced materials and survivability technology to enhance the performance and survivability of combat vehicles and surface craft; technology that provides improved protection for the individual; and materials for reduced maintenance. At the end of this project we should have produced a series of self- healing polymers and model composite materials. The findings will be summarized in reports and disseminated through articles in high impact journals (2) and presentations in international conferences (2).The results will also provide the basis to formulate an extended research program on bio-inspired multifunctional materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N629091512063
Entities
People
- Eduardo Saiz
Organizations
- Imperial College London
- Office of Naval Research
- United States Navy