Synthesis and Characterisation of Lead Free Piezoelectric NBT-BT Ceramic

Saxena, K (2010) Synthesis and Characterisation of Lead Free Piezoelectric NBT-BT Ceramic. BTech thesis.



This project dealt with the preparation of Lead-free piezoelectric ceramics (1- x)Bi0.5Na0.5TiO3 -xBaTiO3 that have been prepared by a conventional solid state reaction method , four different composition of (1- x)Bi0.5Na0.5TiO3 -xBaTiO3 were prepared in which x have values 0, 0.04,0.06,0.08. After the addition of BaTiO3 into Na0.5Bi0.5TiO3, the ceramics exhibit strong piezoelectric property at MPB, the ceramics with x = 0.06 exhibit optimum piezoelectric and dielectric properties. X-ray diffraction analysis of the different composition has been carried out to know about the phases. Dielectric measurement was carried out for different compositions. The samples were poled at a voltage 3-4 KV and the piezoelectric measurements were carried out. The micro-structural characterization was done by Scanning Electron Microscopy.

Item Type:Thesis (BTech)
Uncontrolled Keywords:piezoelectric, NBT-BT, lead-free, ceramics
Subjects:Engineering and Technology > Ceramic Engnieering > Ceramic Materials
Engineering and Technology > Ceramic Engnieering
Divisions: Engineering and Technology > Department of Ceramic Engineering
ID Code:1696
Deposited By:K Saxena
Deposited On:13 May 2010 12:17
Last Modified:13 May 2010 12:17
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Supervisor(s):Mazumder, R

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