Patro, Alok (2012) Dielectric Properties of Low-Temperature Sintered
0.5Ba(Zr0.2Ti0.8)O3 – 0.5(Ba0.7Ca0.3)TiO3 Ceramics. BTech thesis.
The lead-free 0.5Ba (Zr0.2Ti0.8) O3 – 0.5(Ba0.7Ca0.3)TiO3 have been prepared by conventional solid state reaction technique. The phase pure BZT-BCT can be prepared at 1250◦C. The synthesized powder can be sintered to around 98% of the theoretical density at a temperature as low as 1200◦C by adding a mixture of Li2CO3 and Bi2O3as a sintering aid which may form LiBiO2 in-situ, whereas the conventional sintering temperature is around 1400◦C. Interestingly, the dielectric properties of such low-temperature sintered samples are on a par with BZT-BCT samples prepared via conventional sintering at a high temperature. It is also found that the addition of additive shifts the relative permittivity peak maxima towards room temperature.
|Item Type:||Thesis (BTech)|
|Uncontrolled Keywords:||BZT-BCT, LiBiO2|
|Subjects:||Engineering and Technology > Ceramic Engnieering > Ceramic Materials|
|Divisions:||Engineering and Technology > Department of Ceramic Engineering|
|Deposited By:||Mr. Alok Patro|
|Deposited On:||24 May 2012 11:39|
|Last Modified:||24 May 2012 11:39|
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