Abstract: An extrudable ceramic composition comprises piezoelectric ceramic particles and carbon nanomaterial particles suspended in a carrier medium. A piezoelectric ceramic material is produced by curing the composition. The carbon nanomaterials are used as additives to extrudable ceramic compositions (e.g., piezoelectric compositions such as PZT/polymer composites, PZT/sol-gel composites, PZT emulsion pastes and the like). The addition of carbon nanomaterials imparts both beneficial rheological properties (shear thinning) and improved piezoelectric performance to the ceramic material.

Abstract: An extrudable composition includes: an aqueous phase comprising acidic water and piezoelectric ceramic particles suspended in the water; and, an organic phase having an organic solvent, a curable polymer precursor or both an organic solvent and a curable polymer precursor. The composition is 3-D printable to form a self-supporting structure and may be infiltrated with an organic polymer material or cured so that the curable polymer precursor forms an organic polymer material thereby forming a piezoelectric composite having piezoelectric ceramic particles in a co-continuous phase.

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer material comprising at least one thermoplastic polymer, at least one polymer precursor, or any combination thereof, and a plurality of piezoelectric particles dispersed in at least a portion of the polymer material. The piezoelectric particles may interact non-covalently with at least a portion of the polymer material, be covalently bonded to at least a portion of the polymer material, and/or be reactive with at least a portion of the polymer material. The compositions may be extrudable and formable into a self-standing three-dimensional structure upon being extruded. Additive manufacturing processes may comprise forming a printed part by depositing the compositions layer-by-layer.

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles dispersed in at least a portion of a polymer matrix comprising first polymer material and a sacrificial material, the sacrificial material being removable from the polymer matrix to define a plurality of pores in the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The sacrificial material may comprise a second polymer material. The compositions may define a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes may comprise forming a printed part by depositing the compositions layer-by-layer and introducing porosity therein.

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer matrix comprising a first polymer material and a second polymer material that are immiscible with each other, and a plurality of piezoelectric particles located in at least a portion of the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.

Abstract: The present disclosure is directed towards a formulation for piezoelectric materials. The formulation may be printed including 2D or 3D printing. The formulation contains ceramic particles, a sol-gel, a high boiling point solvent and a binder.

Abstract: Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles located in a polymer matrix comprising a first polymer material and a sacrificial material that are immiscible with each other. The sacrificial material, which may comprise a second polymer material, may be removable from the first polymer material under specified conditions. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The polymer matrix may be treated to remove the sacrificial material to introduce a plurality of pores. The compositions may have a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste.