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Advanced Manufacturing of Piezoelectric Textured Ceramic Materials

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-23-C-0022
Agency Tracking Number: N222-111-0327
Amount: $139,954.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N222-111
Solicitation Number: 22.2
Solicitation Year: 2022
Award Year: 2023
Award Start Date (Proposal Award Date): 2022-11-07
Award End Date (Contract End Date): 2023-05-09
Small Business Information
543 Great Road
Littleton, MA 01460-1111
United States
DUNS: 080582813
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Brian Pazol
 (978) 784-7510
Business Contact
 Brian Pazol
Phone: (978) 784-7510
Research Institution

Historically, active materials (Navy Type III) used in compact, low cost Navy sonars, such as A-size sonobuoys have moderate d33 and low loss factor. Recent developments in lead-based textured ceramic with properties between those of conventional PZT ceramics and relaxor single crystals can improve the performance of these systems, but need to be manufactured at high volume and low cost. Most approaches for manufacturing these textured ceramics involve tape casting thin sheets containing a mixture of ceramic powder and binder with embedded template crystals that are cut to size, laminated, fired (to remove the binder) and then thermally post processed to convert the material to a pseudo-single crystal. Even with high levels of automation, the process is laborious since it requires the casting and stacking of hundreds of layers to produce material thick enough to incorporate into transducers with resonances low enough for most Navy applications. MSI Transducers Corp. (MSI’s) innovative solution to reducing the time and cost to manufacture textured ceramic is to use Additive Manufacturing (AM) to form net-shape ceramic preforms (that include templates). These preforms are post processed, using methods in place at MSI, to produce textured ceramic with enhanced properties. In addition, we will replace simple textured ceramic plates or disks with structures that have higher performance, such a 3-3 composites and auxetic structures, to increase output, reduce the amount of textured material used and also decrease the weight of the transducer. Modeling has shown that these shapes can increase the charge coefficient (d33) as much as 3.9 times those of solid ceramic blocks and require 2/3 less material.

* Information listed above is at the time of submission. *

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