Material properties are governed by the chemical composition and spatial arrangement of constituent elements at multiple length scales. This fundamentally limits material properties and creates trade-offs when selecting materials for a specific application. For example, strength and density are inherently linked so that, in general, the more dense the material, the stronger it is in bulk form. We are combining advanced microstructural design with new additive manufacturing techniques to create material systems with previously unachievable property combinations. We have demonstrated designer properties resulting from architected materials in polymers, metals, ceramics and combinations thereof. We generate designed structures which are highly three-dimensional and possess multiple constituent materials in the same structure. We will discuss recent work on applications such as mechanical energy absorbing materials and electrochemical energy storage materials.
This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.