🔬 PZT Analysis

Curie Temperature Detection

📋 Experiment Information

🔬 Experiment Name

Analysis of PZT Dielectric Constant with Curie Temperature Detection

🎯 Objective

To study the variation of dielectric constant of PZT material with temperature and determine the Curie temperature at which the material transitions from ferroelectric to paraelectric phase.

🛠️ Equipment Used

  • PZT sample (Lead Zirconate Titanate)
  • Capacitance meter
  • Furnace
  • Temperature sensor
  • Thickness gauge
  • Area measurement tool

📚 Scientific Theory

PZT (Lead Zirconate Titanate) is a ferroelectric material characterized by spontaneous polarization. At a specific temperature called the Curie temperature (Tc), the material transitions from the ferroelectric phase to the paraelectric phase, where spontaneous polarization disappears. The dielectric constant increases sharply near the Curie temperature, making it an important indicator for identifying this critical point.

εr = (C × d) / (ε0 × A)

Where:
εr: Dielectric constant of the material
C: Capacitance (Farads)
d: Sample thickness (meters)
ε0: Permittivity of free space (8.854 × 10-12 F/m)
A: Sample area (square meters)

📋 Input Your PZT Experimental Data

Enter your experimental data for PZT (Lead Zirconate Titanate) below. The system will automatically detect the Curie temperature - the critical point where PZT transitions from ferroelectric to paraelectric phase.

✏️ Manual Input
📋 Paste Data
📁 Upload File
Temperature (°C) Capacitance C (pF) Dielectric Constant εr

CSV format: First row should contain headers. Temperature and Capacitance columns are required.