Polyhedral units and network connectivity in calcium aluminosilicate glasses from high-energy x-ray diffraction

V. Petkov, S. J.L. Billinge, S. D. Shastri, B. Himmel

Research output: Contribution to journalArticlepeer-review

146 Scopus citations

Abstract

Very high real-space resolution atomic pair distribution functions (PDFs) were obtained from a series of Cax/2AlxSi1-xO2 glasses with x = 0, 0.25, 0.5, 0.67. This was accomplished by using the high fluxes of high-energy x rays available at third generation synchrotron x-ray sources. As a result, it was possible to resolve the different Si-O and Al-O bonds at r = 1.60 angstrom and r = 1.75 angstrom, and to study the Si-O and Al-O coordination polyhedra independently.

Original languageEnglish
Pages (from-to)3436-3439
Number of pages4
JournalPhysical Review Letters
Volume85
Issue number16
DOIs
StatePublished - Oct 16 2000

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