NDLI: Dielectric and micromechanical studies of barium titanate substituted (1-y)Pb (Zn(1/3)Nb(2/3))O(3)-yPT ferroelectric ceramics

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Dielectric and micromechanical studies of barium titanate substituted (1-y)Pb (Zn(1/3)Nb(2/3))O(3)-yPT ferroelectric ceramics

Content Provider	Semantic Scholar
Author	Himanshu, Abhishek Bandyopadhyay, Sujit Kumar Sen, Pintu Gupta, Dinesh Chand Chakraborty, Riya Mukhopadhyay, Anoop Kumar Choudary, Boyapati M. Sinha, T. P.
Copyright Year	2010
Abstract	Dielectric studies have been carried out on barium titanate substituted lead zinc niobate ferroelectrics ceramics, (Pb(0.88)Ba(0.12))[(Zn(1/3)Nb(2/3))(0.88)Ti(0.12))]O(3) and (Pb(0.8)Ba(0.2))[(Zn(1/3)Nb(2/3))(0.8)Ti(0.2))]O(3). The dielectric dispersion of the solid solutions has been studied as a function of temperature in the frequency range 100 Hz-1MHz. The temperature variation of the real components of dielectric permittivity (epsilon') at different frequencies shows a diffuse phase transition. Micromechanical studies have been carried on (Pb(0.88)Ba(0.12))[(Zn(1/3)Nb(2/3))(0.88)Ti(0.12))]O(3) and (Pb(0.8)Ba(0.2))[(Zn(1/3)Nb(2/3))(0.8)Ti(0.2))]O(3) by nanoindentation at different loads. Hardness, Young's modulus, elastic energy and total energy have been extracted. It is seen that in case of (Pb(0.8)Ba(0.12))[(Zn(1/3)Nb(2/3))(0.8)Ti(0.2))]O(3), the plastic deformation energy is lower than the other sample, which is due to extra Ti content in B-site. This is also reflected in polarization studies, which confirms that the presence of Ti(4+) in B-site brings forth rigidity in Ti-O bond.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://nopr.niscair.res.in/bitstream/123456789/8218/1/IJPAP%2048(5)%20349-356.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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