Effects of Pb concentration on phase, microstructure and electrical properties of Bi3.25La0.75Ti3O12 ceramics

Lawita, Pornchanok; Siriprapa, Pasinee; Watcharapasorn, Anucha; Jiansirisomboon, Sukanda

doi:10.1016/j.matchemphys.2012.03.093

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2015

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“…This significant decrease in grain size with the increase in the La content is supported by previous studies. 6,7 The shift in XRD pattern for La = 1 is clearly evident for structural distortion. The rapidity of microwave sintering method could be a reason for suppression of grain growth resulting in a finer and uniform microstructure.…”

Section: Microstructuralmentioning

confidence: 97%

Effect of increasing lanthanum substitution and the sintering procedures on the properties of SrBi4Ti4O15 ceramics

Rambabu

Raju

2015

Bull Mater Sci

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Lanthanum-substituted SrBi 4 Ti 4 O 15 (SBTi) ceramic, that is SrBi 4-x La x Ti 4 O 15 (SBLTi), samples were calcined by solid-state reaction and densified using the microwave sintering and conventional sintering techniques. Their structural, morphological and mechanical properties were investigated. The microwave sintered samples showed high densities like 95% of the theoretical density with short duration exposures. Compared with SBTi ceramics and other lanthanide-substituted compositions, the incorporation of La 3+ results in clear improvement in properties for SBLT (x ~ 0.75) with respect to the values of hardness and Young's modulus of the microwave sintered samples (8.8-12.5 and 160-180 GPa) are higher than that for conventional sintered (8-10 and 135-155 GPa) samples.

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Section: Microstructuralmentioning

confidence: 97%