Computer modeling shows how a tiny lattice is 3-D printed in 150-nanometer layers. When the structure is heated, it can shrink by 80 percent. Credit: Greer Lab/Caltech
By mixing metal ions and organic ligands, scientists have developed a process for the 3D printing of metal structures that are smaller than ever before. The process, once scaled up, could be used in a wide variety of applications, from building tiny medical implants to creating 3D logic circuits on computer chips to engineering ultralightweight aircraft components. It also opens the door to the creation of a new class of materials with unusual properties that are based on their internal structure.
In 3D printing – also known as additive manufacturing – an object is built layer by layer, allowing for the creation of structure...
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