Dielectric and ferroelectric properties of Ta-doped Ba 0.7 Ca 0.3 TiO 3 ceramics

Jaiban, Panupong; Pisitpipathsin, Nuttapon; Buntham, Suwapitcha; Watcharapasorn, Anucha

doi:10.1016/j.ceramint.2017.05.319

Cited by 11 publications

(2 citation statements)

References 17 publications

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“…1(a). Coexistence of tetragonal and orthorhombic phases can be observed for all samples, in agreement with previous works [10][11][12][13][14][15]. Beside the phase coexistence, a starting phase of CaCO 3 (No.…”

Section: Resultssupporting

confidence: 91%

“…It is well known that electrical properties of ferroelectric materials can be tuned by employing donor and/or acceptor substitution. The dielectric, piezoelectric and ferroelectric properties of BCT ceramics have been enhanced by doping with, for examples, Bi 3+ [12], Fe 3+ [13] and La 3+ [14,15] ions. Among dopants previously investigated, magnesium (Mg 2+ ) and niobium (Nb 5+ ) ions are widely used to modify the electrical properties of ferroelectric materials [16].…”

Section: Introductionmentioning

confidence: 99%

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Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba0.7Ca0.3TiO3 lead-free ceramics

Jaiban

Watcharapasorn

Yimnirun

et al. 2017

Journal of Alloys and Compounds

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Ba 0.7 Ca 0.3)TiO 3 , (Ba 0.7 Ca 0.3) 0.995 Ti 0.99 Nb 0.01 O 3 and (Ba 0.7 Ca 0.3)Ti 0.99 Mg 0.01 O 2.99 ceramics were prepared employing a solid state sintering method. The presence of Ti 4+ and structural changes were revealed by X-ray diffraction patterns and X-ray absorption spectra. Upon substitution of Nb 5+ and Mg 2+ ions, a decrease of the ferroelectric transition temperature near room temperature and relaxor-like features of the dielectric

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