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Figure 4
Compressibility determined as shown in Fig. 3[link], in two samples A with different thermal histories and in silicas B and C (stars). The samples are labelled close to the symbols. Isothermal compressibility in two samples of silica A, annealed at 1373 K (black triangles) and 1773 K (black circles), determined in the liquid state using equation (7)[link] and point by point analysis (Levelut et al., 2005BB16), plotted as a function of temperature. [\chi_{{\rm T}}^0] determined using equation (8)[link] and point by point analysis in the glass state state (open circles) for five samples of silica A plotted as a function of Tf, the temperature of heat treatment (Levelut et al., 2005BB16). The dashed line is a guide for the eye of [\chi_{{\rm T}}^0(T_{{\rm f}})] in the glass state.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 40| Part s1| January 2007| Pages s512-s516
doi:10.1107/S0021889807000507
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