Pb2+-stabilized Ruddlesden-Popper (Sr1-xPbx)3Ti2O7 ceramics

Feng Gao; Yunfei Chang; Stephen F. Poterala; Elizabeth Kupp; Gary L. Messing

doi:10.1557/jmr.2016.164

Pb²⁺-stabilized Ruddlesden-Popper (Sr_1-xPb_x)₃Ti₂O₇ ceramics

Feng Gao, Yunfei Chang, Stephen F. Poterala, Elizabeth Kupp, Gary L. Messing

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Pb²⁺-doped (Sr_1-xPb_x)₃Ti₂O₇ (SPT) ceramics were fabricated by a solid state reaction. The stability and lattice structure of Sr3Ti2O7 and Sr₄Ti₃O₁₀ Ruddlesden-Popper (RP) phases were studied as a function of Pb²⁺ content and sintering atmosphere. X-ray diffraction indicates that SrO(SrTiO₃) n RP phase formation is sensitive to the Sr:Ti ratio of the raw materials and is a complex circularly iterative process. When the PbO concentration is less than x = 0.03, pure Sr₃Ti₂O₇ can be obtained. Sr₄Ti₃O₁₀ was found to be the main phase in the SPT samples for x ≥ 0.075. Pb²⁺ stabilizes SrO(SrTiO₃) n RP phases by substitution for Sr²⁺ which reduces the lattice stress of the RP phase. It was observed that SrO vaporization losses at high temperature can be compensated by the decomposition of the intermediate SrPbO₃ phase at lower temperature.

Original language	English (US)
Pages (from-to)	1456-1465
Number of pages	10
Journal	Journal of Materials Research
Volume	31
Issue number	10
DOIs	https://doi.org/10.1557/jmr.2016.164
State	Published - May 28 2016

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{29de9cc591e64eb3ae33c8e5bf4cc423,

title = "Pb2+-stabilized Ruddlesden-Popper (Sr1-xPbx)3Ti2O7 ceramics",

abstract = "Pb2+-doped (Sr1-xPbx)3Ti2O7 (SPT) ceramics were fabricated by a solid state reaction. The stability and lattice structure of Sr3Ti2O7 and Sr4Ti3O10 Ruddlesden-Popper (RP) phases were studied as a function of Pb2+ content and sintering atmosphere. X-ray diffraction indicates that SrO(SrTiO3) n RP phase formation is sensitive to the Sr:Ti ratio of the raw materials and is a complex circularly iterative process. When the PbO concentration is less than x = 0.03, pure Sr3Ti2O7 can be obtained. Sr4Ti3O10 was found to be the main phase in the SPT samples for x ≥ 0.075. Pb2+ stabilizes SrO(SrTiO3) n RP phases by substitution for Sr2+ which reduces the lattice stress of the RP phase. It was observed that SrO vaporization losses at high temperature can be compensated by the decomposition of the intermediate SrPbO3 phase at lower temperature.",

author = "Feng Gao and Yunfei Chang and Poterala, {Stephen F.} and Elizabeth Kupp and Messing, {Gary L.}",

note = "Publisher Copyright: Copyright {\textcopyright} Materials Research Society 2016.",

year = "2016",

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doi = "10.1557/jmr.2016.164",

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T1 - Pb2+-stabilized Ruddlesden-Popper (Sr1-xPbx)3Ti2O7 ceramics

AU - Gao, Feng

AU - Chang, Yunfei

AU - Poterala, Stephen F.

AU - Kupp, Elizabeth

AU - Messing, Gary L.

PY - 2016/5/28

Y1 - 2016/5/28

N2 - Pb2+-doped (Sr1-xPbx)3Ti2O7 (SPT) ceramics were fabricated by a solid state reaction. The stability and lattice structure of Sr3Ti2O7 and Sr4Ti3O10 Ruddlesden-Popper (RP) phases were studied as a function of Pb2+ content and sintering atmosphere. X-ray diffraction indicates that SrO(SrTiO3) n RP phase formation is sensitive to the Sr:Ti ratio of the raw materials and is a complex circularly iterative process. When the PbO concentration is less than x = 0.03, pure Sr3Ti2O7 can be obtained. Sr4Ti3O10 was found to be the main phase in the SPT samples for x ≥ 0.075. Pb2+ stabilizes SrO(SrTiO3) n RP phases by substitution for Sr2+ which reduces the lattice stress of the RP phase. It was observed that SrO vaporization losses at high temperature can be compensated by the decomposition of the intermediate SrPbO3 phase at lower temperature.

AB - Pb2+-doped (Sr1-xPbx)3Ti2O7 (SPT) ceramics were fabricated by a solid state reaction. The stability and lattice structure of Sr3Ti2O7 and Sr4Ti3O10 Ruddlesden-Popper (RP) phases were studied as a function of Pb2+ content and sintering atmosphere. X-ray diffraction indicates that SrO(SrTiO3) n RP phase formation is sensitive to the Sr:Ti ratio of the raw materials and is a complex circularly iterative process. When the PbO concentration is less than x = 0.03, pure Sr3Ti2O7 can be obtained. Sr4Ti3O10 was found to be the main phase in the SPT samples for x ≥ 0.075. Pb2+ stabilizes SrO(SrTiO3) n RP phases by substitution for Sr2+ which reduces the lattice stress of the RP phase. It was observed that SrO vaporization losses at high temperature can be compensated by the decomposition of the intermediate SrPbO3 phase at lower temperature.

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Pb²⁺-stabilized Ruddlesden-Popper (Sr_1-xPb_x)₃Ti₂O₇ ceramics

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