Abstract Four‐dimensional (4D) printing enables programmable, predictable, and precise
shape change of responsive materials to achieve desirable behaviors beyond conventional
three‐dimensional (3D) printing. However, applying 4D printing to ceramics remains
challenging due to their intrinsic brittleness and inadequate stimuli‐responsive ability. Here,
this work proposes a conceptional combination of bioinspired microstructure design and a
programmable prestrain approach for 4D printing of nanoceramics. To overcome the …

In article number 2204032, Wei Zhai and co-workers demonstrate a unique nanoceramic
composite with a bioinspired concentric cylinder microstructure. Due to its unique
microstructure, the nanoceramic composites exhibit superior flexibility and mechanical
performance for 4D printing, and additional chemical, thermal and electrical properties for
multifunctional applications.