The principle of weak magnetic field-assisted 3D printing and microstructure and properties of HA bioceramics with biomimetic structures (IMAGE)

Tsinghua University Press

The principle of weak magnetic field-assisted 3D printing and microstructure and properties of HA bioceramics with biomimetic structures

Caption

Inspired by the oriented and Bouligand structures in natural organisms with remarkable strength and toughness, a magnetic field-assisted 3D printing device was developed for the preparation of bioceramics. When an appropriate magnetic field (58 mT - 116 mT) is applied in 3D printing, HA whiskers are aligned under a magnetic torque. The Bouligand structural HA bioceramics achieve a combination of excellent strength and toughness comparable to that of cortical bone. The oriented and Bouligand structural HA bioceramics exhibit not only excellent mechanical performance but also considerable absorption capacity in synthetic blood. This research establishes the magnetic field-assisted 3D printer as an effective method for balancing strength and toughness in brittle ceramics.

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Journal of Advanced Ceramics, Tsinghua University Press

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