| 2022-NAWR-69857 | |
| Researchers at Purdue University have developed a new method for additive manufacturing (3-D printing) of functional materials. No methods that combine additive manufacturing and electric poling currently exist, significantly limiting the range of materials that can be electrically polarized. The Purdue researchers' method allows for electric poling of complex geometric structures. The Purdue researchers electrically polarized poly(vinylidene fluoride), known as PVdF, to improve its characteristics and performance, including its piezoelectric activity, sensitivity, and beta-phase. The highest average piezoelectric activity obtained using the researchers' method was 59.2 pC/N, whereas the average piezoelectric activity of printed unpoled films was 7.13 pC/N. Advantages - Allows functionalizing complex 3D structures - Allows for embedding sensing into 3D structures - Improves piezoelectric response Applications - Piezoelectric force and temperature sensing Technology Validation: Increasing the poling voltages and time provided a piezoelectric activity approximately 8 times higher than that of unpoled films. Publications 1] https://doi.org/10.1002/adem.202200485 2] https://doi.org/10.1115/SMASIS2021-67832 3] https://doi.org/10.1115/SMASIS2020-2245 |
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Jun 16, 2023
Utility Patent
United States
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Jun 16, 2023
Utility Patent
United States
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Jun 16, 2022
Provisional-Patent
United States
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(None)
Jun 16, 2022
Provisional-Patent
United States
(None)
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