Fig. 5: Inverse linear correlation between m and MRD values for 89 glasses.

The MRD values of 48 CAS glasses (red circles) were calculated using the linear equation between MRD and SiO₂ mol% content obtained in Fig. 2a. The MRD values of 10 NAS glasses (black circles) were calculated using the equation, as shown in Fig. 4e. The MRD values of all other glasses were derived from the measured FSDPs of neutron structure factors. The error bars of calculated MRD values were propagated from errors in the linear equations. The error bars of measured MRD values are approximately the same size as the symbols. The dotted line is a linear fit of the data for 89 glasses, with R² = 0.77. ^a: see the resources of Fig. 1; ^b: ref. [29], ^c: ref. [30], ^d: ref. [36], ^e: ref. [24], ^f: ref. [52], ^g: ref. [53].