Lanthanide-containing zirconotitanate solid solutions

Shara S. Shoup; Carlos E. Bamberger; Jennifer L. Tyree; Lawrence M. Anovitz

doi:10.1006/jssc.1996.0379

Lanthanide-containing zirconotitanate solid solutions

Shara S. Shoup, Carlos E. Bamberger, Jennifer L. Tyree, Lawrence M. Anovitz

Geochemistry & Interfacial Science

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

25 Scopus citations

Abstract

Solid solutions between several lanthanide-containing dititanate and dizirconate compounds have been synthesized and identified using X-ray diffraction (XRD). Complete solubility was found in the pyrochlore-pyrochlore-type systems Er₂Ti₂O₇-Nd₂Zr₂O ₇ and Nd_1.2Er_0.8Ti₂O₇-Nd ₂Zr₂O₇. Some solubility of Nd₂Ti₂O₇, a monoclinic dititanate, in defect fluorite Er₂Zr₂O₇ was observed, and it was determined that there is some solubility of Nd₂Ti₂O₇ in pyrochlore-type Nd₂Zr₂O₇. The systems Nd₂Zr₂O₇-TiO₂ and Nd₂Ti₂O₇-ZrO₂ also were investigated to help define a region of pyrochlore solid solution formation in the system NdO_1.5-TiO₂-ZrO₂. Additionally, attempts were made to synthesize pyrochlore-type solid solutions between Ce₂Ti₂O₇ and Ce₂Zr₂O₇ and to substitute titanium with zirconium in the perovskite-type phases SrNd₂Ti₄O₁₂ and Sr₂Ce₂Ti₅O₁₆.

Original language	English
Pages (from-to)	231-239
Number of pages	9
Journal	Journal of Solid State Chemistry
Volume	127
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1996.0379
State	Published - Dec 1996

Funding

This research was supported by the Division of Materials Sciences, Office of Basic Energy Sciences, U.S. Department of Energy, under Contract DE-AC05–96OR22464 and performed at the Oak Ridge National Laboratory managed by Lockheed Martin Energy Research Corporation. S.S.S. is grateful for the support by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy, under Grant DE-FG05–88ER13865 to the University of Tennessee, Knoxville.

Funders	Funder number
Division of Chemical Sciences	DE-FG05–88ER13865
Office of Basic Energy Sciences
U.S. Department of Energy	DE-AC05–96OR22464
Lockheed Martin Corporation
University of Tennessee
Division of Materials Sciences and Engineering

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10.1006/jssc.1996.0379

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title = "Lanthanide-containing zirconotitanate solid solutions",

abstract = "Solid solutions between several lanthanide-containing dititanate and dizirconate compounds have been synthesized and identified using X-ray diffraction (XRD). Complete solubility was found in the pyrochlore-pyrochlore-type systems Er2Ti2O7-Nd2Zr2O 7 and Nd1.2Er0.8Ti2O7-Nd 2Zr2O7. Some solubility of Nd2Ti2O7, a monoclinic dititanate, in defect fluorite Er2Zr2O7 was observed, and it was determined that there is some solubility of Nd2Ti2O7 in pyrochlore-type Nd2Zr2O7. The systems Nd2Zr2O7-TiO2 and Nd2Ti2O7-ZrO2 also were investigated to help define a region of pyrochlore solid solution formation in the system NdO1.5-TiO2-ZrO2. Additionally, attempts were made to synthesize pyrochlore-type solid solutions between Ce2Ti2O7 and Ce2Zr2O7 and to substitute titanium with zirconium in the perovskite-type phases SrNd2Ti4O12 and Sr2Ce2Ti5O16.",

author = "Shoup, {Shara S.} and Bamberger, {Carlos E.} and Tyree, {Jennifer L.} and Anovitz, {Lawrence M.}",

year = "1996",

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doi = "10.1006/jssc.1996.0379",

language = "English",

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pages = "231--239",

journal = "Journal of Solid State Chemistry",

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T1 - Lanthanide-containing zirconotitanate solid solutions

AU - Shoup, Shara S.

AU - Bamberger, Carlos E.

AU - Tyree, Jennifer L.

AU - Anovitz, Lawrence M.

PY - 1996/12

Y1 - 1996/12

N2 - Solid solutions between several lanthanide-containing dititanate and dizirconate compounds have been synthesized and identified using X-ray diffraction (XRD). Complete solubility was found in the pyrochlore-pyrochlore-type systems Er2Ti2O7-Nd2Zr2O 7 and Nd1.2Er0.8Ti2O7-Nd 2Zr2O7. Some solubility of Nd2Ti2O7, a monoclinic dititanate, in defect fluorite Er2Zr2O7 was observed, and it was determined that there is some solubility of Nd2Ti2O7 in pyrochlore-type Nd2Zr2O7. The systems Nd2Zr2O7-TiO2 and Nd2Ti2O7-ZrO2 also were investigated to help define a region of pyrochlore solid solution formation in the system NdO1.5-TiO2-ZrO2. Additionally, attempts were made to synthesize pyrochlore-type solid solutions between Ce2Ti2O7 and Ce2Zr2O7 and to substitute titanium with zirconium in the perovskite-type phases SrNd2Ti4O12 and Sr2Ce2Ti5O16.

AB - Solid solutions between several lanthanide-containing dititanate and dizirconate compounds have been synthesized and identified using X-ray diffraction (XRD). Complete solubility was found in the pyrochlore-pyrochlore-type systems Er2Ti2O7-Nd2Zr2O 7 and Nd1.2Er0.8Ti2O7-Nd 2Zr2O7. Some solubility of Nd2Ti2O7, a monoclinic dititanate, in defect fluorite Er2Zr2O7 was observed, and it was determined that there is some solubility of Nd2Ti2O7 in pyrochlore-type Nd2Zr2O7. The systems Nd2Zr2O7-TiO2 and Nd2Ti2O7-ZrO2 also were investigated to help define a region of pyrochlore solid solution formation in the system NdO1.5-TiO2-ZrO2. Additionally, attempts were made to synthesize pyrochlore-type solid solutions between Ce2Ti2O7 and Ce2Zr2O7 and to substitute titanium with zirconium in the perovskite-type phases SrNd2Ti4O12 and Sr2Ce2Ti5O16.

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DO - 10.1006/jssc.1996.0379

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Lanthanide-containing zirconotitanate solid solutions

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