Lead zirconate titanate

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PRESENTATION ON-Strength Properties of Poled
Lead Zirconate Titanate Subjected toBiaxial
Flexural Loading in High Electric Field

• MOHD ALAM
• PhD-Part Ist
• Department of Ceramic Engg.
• IIT (BHU), VARANASI
• ROLL No 16031504

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PLAN OF TALK

• INTRODUCTION
• PRESENT WORK
• RESULTS AND DISCUSSIONS
• CONCLUSIONS

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INTRODUCTION

• Lead zirconate titanate is an intermetallic
  inorganic compound with the chemical formula
  PbZrxTi1-xO3 (0x1). Also called PZT.
• it is a ceramic perovskite material that shows a
  marked piezoelectric effect.
• Being piezoelectric, PZT develops a voltage (or
  potential difference) across two of its faces
  when compressed, or physically changes shape when
  an external electric field is applied,
• It is used in a number of practical applications
  such as sensor applications, ultrasonic
  transducers and piezoelectric resonators.

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Poling Mechanism

• The central shifting ion in the tetragonal unit
  cell of PZT allows the material to be a
  dielectric and a piezoelectric.

Poling Direction

• Since the central ion can only move in the c
  direction, the domains must align so this can
  occur. Poling direction domains effectively grow.
  

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Present work

• The mechanical strength of poled lead zirconate
  titanate (PZT) has been studied using
  ball-on-ring (BoR) biaxial flexure tests with a
  high electric field applied concurrently. Both
  the as received and the aged PZT specimens were
  tested