Hydrothermal Chemistry of Silicates: Low-Temperature Synthesis of y-Yttrium Disilicate

The synthesis of crystalline y‐Y2Si2O7 has been achieved at a temperature as low as 365°C. This has been accomplished by following a hydrothermal method and using a layered clay as silicon source, whose structure‐directing character facilitates the nucleation process. The structural characterization...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2003-09, Vol.86 (9), p.1592-1594
Main Authors: Becerro, Ana I., Naranjo, Moisés, Perdigón, Ana C., Trillo, José M.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from solutions
Materials science
Methods of crystal growth
physics of crystal growth
phase diagrams
Physics
silicates
synthesis
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Summary:The synthesis of crystalline y‐Y2Si2O7 has been achieved at a temperature as low as 365°C. This has been accomplished by following a hydrothermal method and using a layered clay as silicon source, whose structure‐directing character facilitates the nucleation process. The structural characterization of the y‐Y2Si2O7 polymorph is conducted with special emphasis on the MAS‐NMR spectrum. Extending this finding to other binary silicate compounds allows revising the phase diagrams of these systems in the low‐temperature range.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.2003.tb03519.x