3D-printed ferroelectric metamaterial with giant piezoelectricity and biomimetic mechanical toughness
US12010920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2021 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Mar 10, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/001
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An in-situ poled ferroelectric prints with true 3D geometry is provided with an intercalated electrode design where soft polymer matrixes are selected for the ferroelectric layers, and rigid polymer matrixes are selected for the electrode layers, thus mimicking nacre architecture with a ceramic-like piezoelectric property and bone-like fracture toughness. Lithium-doped potassium sodium niobite (Li—KNN) microparticles may be used to produce ferroelectric properties and to create strong interfacial bonding with the interfacing electrode layers. Polylactic acid (PLA) in the electrode layers may be used to facilitate strong interfacial bonding with the Li—KNN microparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.