Chemical preparation and phase stability of Ca2SiO4 and Sr2SiO4 powders

Ian Nettleship; James L. Shull; Waltraud M. Kriven

doi:10.1016/0955-2219(93)90028-P

Chemical preparation and phase stability of Ca₂SiO₄ and Sr₂SiO₄ powders

Ian Nettleship, James L. Shull, Waltraud M. Kriven

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

Abstract

A process has been developed to produce high surface area Ca₂SiO₄ and Sr₂SiO₄ powders using colloidal silica for the silicon precursor. This method was relatively straightforward and avoided the use of precipitation techniques and unstable alkoxides. Calcium carbonate and strontium carbonate were identified as intermediate compounds, and the silicates appeared to form by a low-temperature solid-state reaction. The effect of resin content and calcination conditions on the phase distribution and physical properties of the powders was examined. Finally, the sodium content of the colloidal silica was found to have a significant effect on the phase stability of β-Ca₂SiO₄ after calcination at 1400°C.

Original language	English (US)
Pages (from-to)	291-298
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	11
Issue number	4
DOIs	https://doi.org/10.1016/0955-2219(93)90028-P
State	Published - 1993

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1016/0955-2219(93)90028-P

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@article{c43020cb49a74bd7bd6448e004bf7255,

title = "Chemical preparation and phase stability of Ca2SiO4 and Sr2SiO4 powders",

abstract = "A process has been developed to produce high surface area Ca2SiO4 and Sr2SiO4 powders using colloidal silica for the silicon precursor. This method was relatively straightforward and avoided the use of precipitation techniques and unstable alkoxides. Calcium carbonate and strontium carbonate were identified as intermediate compounds, and the silicates appeared to form by a low-temperature solid-state reaction. The effect of resin content and calcination conditions on the phase distribution and physical properties of the powders was examined. Finally, the sodium content of the colloidal silica was found to have a significant effect on the phase stability of β-Ca2SiO4 after calcination at 1400°C.",

author = "Ian Nettleship and Shull, {James L.} and Kriven, {Waltraud M.}",

note = "The authorsw isht o thank MrK yle E. Eckmannfo r helpi n preparinsgo meo f thed icalciumsi licatea nd someo f theX -raya nalysesT.h is projecwt asfunded by the US Air Force Office of ScientificR esearch underg rantsA FOSR-89-0300a nd URI AFOSR-90-0174J.a mesL . Shull, Jr was supportebdy a US NationaSl cienceF oundatioGn raduatFee llowship. The authorsw ouldalso like to thankt heDu Pont ChemicaCl ompanyfo r supplyintgh e colloidasill ica usedi n this study.U se of the electronm icroscope facilitiesa t the Centerf or ElectronM icroscopya t UIUC is gratefully acknowledgedT. he plasma emissions pectroscopy wpaes rformedb y the staffo f the MicroanalyticalL aboratory in the School of ChemicalS ciences aUt IUC.",

year = "1993",

doi = "10.1016/0955-2219(93)90028-P",

language = "English (US)",

volume = "11",

pages = "291--298",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "4",

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TY - JOUR

T1 - Chemical preparation and phase stability of Ca2SiO4 and Sr2SiO4 powders

AU - Nettleship, Ian

AU - Shull, James L.

AU - Kriven, Waltraud M.

N1 - The authorsw isht o thank MrK yle E. Eckmannfo r helpi n preparinsgo meo f thed icalciumsi licatea nd someo f theX -raya nalysesT.h is projecwt asfunded by the US Air Force Office of ScientificR esearch underg rantsA FOSR-89-0300a nd URI AFOSR-90-0174J.a mesL . Shull, Jr was supportebdy a US NationaSl cienceF oundatioGn raduatFee llowship. The authorsw ouldalso like to thankt heDu Pont ChemicaCl ompanyfo r supplyintgh e colloidasill ica usedi n this study.U se of the electronm icroscope facilitiesa t the Centerf or ElectronM icroscopya t UIUC is gratefully acknowledgedT. he plasma emissions pectroscopy wpaes rformedb y the staffo f the MicroanalyticalL aboratory in the School of ChemicalS ciences aUt IUC.

PY - 1993

Y1 - 1993

N2 - A process has been developed to produce high surface area Ca2SiO4 and Sr2SiO4 powders using colloidal silica for the silicon precursor. This method was relatively straightforward and avoided the use of precipitation techniques and unstable alkoxides. Calcium carbonate and strontium carbonate were identified as intermediate compounds, and the silicates appeared to form by a low-temperature solid-state reaction. The effect of resin content and calcination conditions on the phase distribution and physical properties of the powders was examined. Finally, the sodium content of the colloidal silica was found to have a significant effect on the phase stability of β-Ca2SiO4 after calcination at 1400°C.

AB - A process has been developed to produce high surface area Ca2SiO4 and Sr2SiO4 powders using colloidal silica for the silicon precursor. This method was relatively straightforward and avoided the use of precipitation techniques and unstable alkoxides. Calcium carbonate and strontium carbonate were identified as intermediate compounds, and the silicates appeared to form by a low-temperature solid-state reaction. The effect of resin content and calcination conditions on the phase distribution and physical properties of the powders was examined. Finally, the sodium content of the colloidal silica was found to have a significant effect on the phase stability of β-Ca2SiO4 after calcination at 1400°C.

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