Direct evidence of rigidity loss and self-organisation in silicate glasses
| dc.creator | Vaills, Y. | |
| dc.creator | Qu, T. | |
| dc.creator | Micoulaut, M. | |
| dc.creator | Chaimbault, F. | |
| dc.creator | Boolchand, P. | |
| dc.date | 2004-06-22 | |
| dc.date.accessioned | 2026-07-07T02:58:45Z | |
| dc.date.available | 2026-07-07T02:58:45Z | |
| dc.description | The Brillouin elastic free energy change $DF$ between thermally annealed and quenched $(Na_2O)_x(SiO_2)_{1-x}$ glasses is found to decrease linearly at $x > 0.23$ (floppy phase), and to nearly vanish at $x < 0.18$ (stressed- rigid phase). The observed $D F(x)$ variation closely parallels the mean-field floppy mode fraction $f(x)$ in random networks, and fixes the two (floppy, stressed-rigid) elastic phases. In calorimetric measurements, the non-reversing enthalpy near $T_g$ is found to be large at $x < 0.18$ and at $x > 0.23$, but to nearly vanish in the $0.18 < x < 0.23$ range, suggesting existence of an intermediate phase between the floppy and stressed-rigid phases. | |
| dc.description | 12 pages RevTeX, 4 figures in EPS | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0406509 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0406509 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24236 | |
| dc.subject | Materials Science | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Direct evidence of rigidity loss and self-organisation in silicate glasses | |
| dc.type | text |