Abstract
Barium titanate ( BaTiO 3) woodpile structures with designed, three-dimensional (3D) geometry have been fabricated by direct-writing assembly techniques. Concentrated BaTiO 3 inks with suitable rheological properties were prepared to enable the fabrication of the complex 3D structures. It was demonstrated that BaTiO 3 inks with a total solids volume fraction of 0.41 are shear thinning and have a high storage modulus 1 × 105 Pa with a yield stress of 300 Pa. Additionally, the woodpile lattice structures exhibited an excellent self-supporting feature.
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