Barium Titanate By: Andy Selvy Cer. 251 Barium Titanate General Info Commercial uses Phase Diagram.

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Presentation transcript:

Barium Titanate By: Andy Selvy Cer. 251

Barium Titanate General Info Commercial uses Phase Diagram

BaTiO 3 Info BaO + TiO 2 BaTiO 3

BaTiO 3 Properties Perovskite Structure Piezoelectricity Density 5.85 g/cm^3 High Dielectric constant

Uses for BaTiO 3 Underwater Sonar Guided Missiles Acoustic Mines Sound Reproduction Ultrasonic Therapy Electronic Materials Ultrasonic Cleaning Filters

Ceramic Capacitors Multilayer Ceramic Capacitors (MLCC) Barium titanate powder, Made into capacitors

BaTiO 3 Phase Diagram

Start with the empty diagram

Label important phase fields Liquid TiO 2 + Liq BaTiO 3 Cubic BaTiO 3 + Liq BaTi 4 O 9 + TiO 2 Ba 2 TiO 4 +Hex BaTiO 3 Ba 2 TiO 4 + Cubic BaTiO 3 Cubic BaTiO 3 +BaTi 2 O 5 Ba 2 TiO 4 +Liq BaO+ Ba 2 Ti O 4

Some important points Eutectic PointsCongruent Melting PtsPeritectic Points

The End

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