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Related Concept Videos

Ferromagnetism01:31

Ferromagnetism

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Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
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Related Experiment Video

Updated: Dec 5, 2025

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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A 3D-printed molecular ferroelectric metamaterial.

Yong Hu1, Zipeng Guo2, Andrew Ragonese1

  • 1Department of Mechanical and Aerospace Engineering, The State University of New York at Buffalo, Buffalo, NY 14260.

Proceedings of the National Academy of Sciences of the United States of America
|October 20, 2020
PubMed
Summary

Researchers developed rapid 3D printing for molecular ferroelectrics, enabling self-healing, reprogrammable mechanical metamaterials with tunable stiffness and vibration mitigation.

Keywords:
additive manufacturinghydrogelmechanical metamaterialsmolecular ferroelectricsthree-dimensional printing

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Area of Science:

  • Materials Science
  • Additive Manufacturing
  • Ferroelectric Materials

Background:

  • Molecular ferroelectrics offer unique electromechanical coupling and electric polarizability for stimuli-dependent metamaterials.
  • Current fabrication methods limit rapid prototyping of these advanced mechanical metamaterials.

Purpose of the Study:

  • To present a novel continuous rapid printing strategy for fabricating molecular ferroelectric metamaterials.
  • To demonstrate the potential of these materials in creating dynamic, tunable mechanical structures.

Main Methods:

  • Utilized electric-field-assisted additive manufacturing for volumetric deposition of water-soluble molecular ferroelectrics.
  • Employed scaffold-supported fabrication for creating crystalline lattices with self-healing properties.
  • Incorporated resonant inclusions within the ferroelectric architecture.

Main Results:

  • Achieved precise spatial control in 3D geometries for molecular ferroelectric metamaterials.
  • Demonstrated self-healing and reprogrammable stiffness in scaffold-supported lattices, enhancing sustainability and lifespan.
  • Exhibited adaptive mitigation of vibroacoustic loads through an electrically tunable subwavelength band gap.

Conclusions:

  • The developed continuous rapid printing strategy enables versatile additive manufacturing of molecular ferroelectric metamaterials.
  • These materials hold significant potential for dynamic tuning of mechanical properties and advanced vibration damping applications.