Directed Colloidal Assembly of Linear and Annular Lead Zirconate Titanate Arrays

James E. Smay, Joseph Cesarano, Bruce A. Tuttle, Jennifer A. Lewis

Research output: Contribution to journalArticlepeer-review


Lead zirconate titanate (PZT) arrays for ultrasonic sensing applications in the 2-30-MHz frequency range were fabricated by robocasting, a directed colloidal assembly technique. Both linear and annular arrays were produced by robotically depositing a concentrated PZT gel-based ink to create high-aspect-ratio PZT elements (thickness ∼ 130 μm and height ∼1-2 mm) of varying pitch (∼ 250-410 μm). The arrays were densified and infiltrated with an epoxy resin to fabricate PZT-polymer composites with 2-2 connectivity. Their dielectric and piezoelectric constants were measured and compared with values obtained for bulk PZT and those predicted theoretically.

Original languageEnglish (US)
Pages (from-to)293-295
Number of pages3
JournalJournal of the American Ceramic Society
Issue number2
StatePublished - Feb 2004
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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