Thermal Conversion of Cs-exchanged IONSIV IE-911 into a Novel Caesium Ceramic Wasteform by Hot Isostatic Pressing

Tzu-yu Chen; Joseph A. Hriljac; Amy S. Gandy; Martin C. Stennett; Neil C. Hyatt; Ewan. R. Maddrell

doi:10.1557/opl.2013.202

Thermal Conversion of Cs-exchanged IONSIV IE-911 into a Novel Caesium Ceramic Wasteform by Hot Isostatic Pressing

Tzu-yu Chen, Joseph A. Hriljac, Amy S. Gandy, Martin C. Stennett, Neil C. Hyatt, Ewan. R. Maddrell

Chemistry

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3 Citations (Scopus)

Abstract

Hot Isostatic Pressing of Cs-exchanged IONSIV IE-911 samples is shown to produce a mixture of ceramic phases, the nature and mass fractions of these have been determined by Rietveld analysis of powder X-ray diffraction data. The main Cs phase that forms is Cs2TiNb6O18, after this reaches approximately 30% of the total crystalline content the remaining Cs is partitioned into Cs2ZrSi6O15. Durability tests using the PCT-B method for 7 days at 90 °C with deionised water lead to Cs leach rates of 0.032 and 0.038 g∙m−2∙day−1 for samples exchanged to 6 and 12 wt% Cs, respectively, indicating a durable wasteform is produced.

Original language	English
Pages (from-to)	67-72
Number of pages	6
Journal	MRS Online Proceedings
Volume	1518
DOIs	https://doi.org/10.1557/opl.2013.202
Publication status	Published - 1 Jan 2013

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10.1557/opl.2013.202

http://www.journals.cambridge.org/abstract_S1946427413002029

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title = "Thermal Conversion of Cs-exchanged IONSIV IE-911 into a Novel Caesium Ceramic Wasteform by Hot Isostatic Pressing",

abstract = "Hot Isostatic Pressing of Cs-exchanged IONSIV IE-911 samples is shown to produce a mixture of ceramic phases, the nature and mass fractions of these have been determined by Rietveld analysis of powder X-ray diffraction data. The main Cs phase that forms is Cs2TiNb6O18, after this reaches approximately 30% of the total crystalline content the remaining Cs is partitioned into Cs2ZrSi6O15. Durability tests using the PCT-B method for 7 days at 90 °C with deionised water lead to Cs leach rates of 0.032 and 0.038 g∙m−2∙day−1 for samples exchanged to 6 and 12 wt% Cs, respectively, indicating a durable wasteform is produced.",

author = "Tzu-yu Chen and Hriljac, {Joseph A.} and Gandy, {Amy S.} and Stennett, {Martin C.} and Hyatt, {Neil C.} and Maddrell, {Ewan. R.}",

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T1 - Thermal Conversion of Cs-exchanged IONSIV IE-911 into a Novel Caesium Ceramic Wasteform by Hot Isostatic Pressing

AU - Chen, Tzu-yu

AU - Hriljac, Joseph A.

AU - Gandy, Amy S.

AU - Stennett, Martin C.

AU - Hyatt, Neil C.

AU - Maddrell, Ewan. R.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Hot Isostatic Pressing of Cs-exchanged IONSIV IE-911 samples is shown to produce a mixture of ceramic phases, the nature and mass fractions of these have been determined by Rietveld analysis of powder X-ray diffraction data. The main Cs phase that forms is Cs2TiNb6O18, after this reaches approximately 30% of the total crystalline content the remaining Cs is partitioned into Cs2ZrSi6O15. Durability tests using the PCT-B method for 7 days at 90 °C with deionised water lead to Cs leach rates of 0.032 and 0.038 g∙m−2∙day−1 for samples exchanged to 6 and 12 wt% Cs, respectively, indicating a durable wasteform is produced.

AB - Hot Isostatic Pressing of Cs-exchanged IONSIV IE-911 samples is shown to produce a mixture of ceramic phases, the nature and mass fractions of these have been determined by Rietveld analysis of powder X-ray diffraction data. The main Cs phase that forms is Cs2TiNb6O18, after this reaches approximately 30% of the total crystalline content the remaining Cs is partitioned into Cs2ZrSi6O15. Durability tests using the PCT-B method for 7 days at 90 °C with deionised water lead to Cs leach rates of 0.032 and 0.038 g∙m−2∙day−1 for samples exchanged to 6 and 12 wt% Cs, respectively, indicating a durable wasteform is produced.

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DO - 10.1557/opl.2013.202

M3 - Article

SN - 1946-4274

VL - 1518

SP - 67

EP - 72

JO - MRS Online Proceedings

JF - MRS Online Proceedings

ER -

Thermal Conversion of Cs-exchanged IONSIV IE-911 into a Novel Caesium Ceramic Wasteform by Hot Isostatic Pressing

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