Abstract
The central-force network dynamics model for glasses is extended to treat networks involving small regular rings of bonds. In particular, band-limit formulas are obtained for an A2X3 glass consisting of regular puckered six-membered A3X3 rings. The special case of planar rings is compared with observations on vitreous B2O3. This continuous random network of "boroxol" rings shows improved agreement with experiment over a model not containing rings. The remaining discrepancies illustrate the need to include noncentral forces in the network dynamics of v-B2O3.
Original language | English (US) |
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Pages (from-to) | 5802-5813 |
Number of pages | 12 |
Journal | Physical Review B |
Volume | 28 |
Issue number | 10 |
DOIs | |
State | Published - 1983 |
ASJC Scopus subject areas
- Condensed Matter Physics