Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Surya M. Gupta"'
Autor:
Vandana Sharma, Randeep Kaur, Mandeep Singh, Rachna Selvamani, Surya M. Gupta, Vidya Sagar Tiwari, A. K. Karnal, Anupinder Singh
Publikováno v:
Journal of Asian Ceramic Societies, Vol 6, Iss 3, Pp 222-231 (2018)
Polycrystalline samples of Pb1-xLax/2Smx/2Ti1-xFexO3 (x = 0.20 and 0.30) have been prepared by solid state reaction route. The electrical properties of synthesized samples have been investigated using complex impedance spectroscopy as a function of f
Externí odkaz:
https://doaj.org/article/18f2f7f13656406c89e4035e7327569f
Autor:
Rachna Selvamani, A.K. Karnal, Mandeep Singh, Anupinder Singh, Randeep Kaur, Vandana Sharma, Vidya Sagar Tiwari, Surya M. Gupta
Publikováno v:
Journal of Asian Ceramic Societies, Vol 6, Iss 3, Pp 222-231 (2018)
Polycrystalline samples of Pb1-xLax/2Smx/2Ti1-xFexO3 (x = 0.20 and 0.30) have been prepared by solid state reaction route. The electrical properties of synthesized samples have been investigated using complex impedance spectroscopy as a function of f
Publikováno v:
Journal of the American Ceramic Society. 99:3443-3448
Publikováno v:
Materials Science and Engineering: B. 253:114495
Phase, microstructural, dielectric and ferroelectric properties investigation clearly reveal that the charge imbalance created due to alio-valent Gd3+-ion substitution at the Pb2+-site in lead magnesium niobate (PMN) should be compensated by changing
Publikováno v:
AIP Conference Proceedings.
Both superparaelectric and superparamagnetic behaviour has been observed in rare earth magnetic ion Gd3+ doped Lead Magnesium Niobate (Gd-PMN). Field induced polarization and magnetization studies reveal hystresis loss free P-E and M-H loop at 300K a
Publikováno v:
Materials Science and Engineering: B. 175:207-212
A correlated study involving structure analysis, temperature dependence of dielectric functions and the complex impedance spectroscopy analysis was carried out in lanthanum modified bismuth titanate (BT, Bi4−xLaxTi3O12; x = 0, 0.75) ceramics. A ser
Publikováno v:
Pramana. 71:599-610
AC impedance spectroscopy technique has been used to study electrical properties of Bi3.25La0.75Ti3O12 (BLT) ceramic. Complex impedance plots were fitted with three depressed semicircles, which are attributed to crystalline layer, plate boundary and
A comparative dielectric relaxation study of PMN–PT and PMN–PZ ceramics using impedance spectroscopy
Publikováno v:
Materials Science and Engineering: B. 120:194-198
AC-impedance spectroscopic studies in the temperature range of 30–400 °C are carried out on solid solutions of lead magnesium niobate (PMN) with lead titanate (PT) and lead zirconate (PZ), both of them in the 65/35 atomic ratio. For PMN–PT this
Publikováno v:
Materials Science and Engineering: B. 120:199-205
The basic classification of smart materials and structures is reviewed briefly. The role of nonlinear response for achieving field-tunability of properties is described in simple terms. The observation of the two-way shape-memory effect in a solid so
Publikováno v:
Journal of the American Ceramic Society. 81:557-564
Hot-stage transmission electron microscopy studies of lanthanum-modified lead zirconate titanate (Pb1-xLax-(Zr0.53Ti0.47)1-x/4O3 (PLZT 100x/53/47) have been performed for compositions close to the morphotropic phase boundary (MPB). These studies have