Characterization of High Porous PZT Piezoelectric Ceramics by different Techniques

  • Praveen Kumar B Young Scientist centre (ACE Cluster) Armament Research & Development Establishment, DRDO, Pashan, Pune
  • Bhupender Rawal Young Scientist centre (ACE Cluster) Armament Research & Development Establishment, DRDO, Pashan, Pune
  • KM Rajan Director Armament Research & Development Establishment, DRDO, Pashan, Pune
Keywords: BURPS, Freeze casting, Foam reticulation, Porous, Piezoceramics


Ultimate properties of a porous ceramic is highly process dependent. In this study, prevalent porous ceramics fabrication methods (Freeze casting, Foam reticulation and Burnable Plastic Sphere (BURPS) method) have been compared by fabricating the porous lead zirconate titanate (PZT) based piezoelectric ceramics. Field Emission Scanning electron microscopy (FESEM) studies were carried out to study the pore size and distribution of the ceramics. Hydrostatic co-efficients increased tremendously on incorporation of porosity which led to Hydrostatic Figure of Merit of 7480 in Foam reticulation samples (porosity 86%). The three dimensionally interconnected networks in the freeze casted samples led to lowest acoustic impedance (6 MRayls) despite not having the lowest density.


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How to Cite
B, P., Rawal, B., & Rajan, K. (2018). Characterization of High Porous PZT Piezoelectric Ceramics by different Techniques. Defence Science Journal, 68(5), 500-504.
Materials Science & Metallurgy