TY - JOUR
AU - Sidebottom, D L
AB - We report results of an extensive study of the structural relaxation occurring in mixedalkali metaphosphate liquids obtained by photon correlation spectroscopy. Values for theglass transition temperature, the fragility index, and the heterogeneity parameter (alsoknown as the Kohlrausch exponent) are extracted from the measurements and are allshown to exhibit a mixed alkali effect wherein nonlinear variations with mixing occur. Thedepression in the glass transition temperature is shown to be the direct result of mechanicalrelaxations, present in the solid, which prematurely loosen the glass structure. A minimumin the fragility index is believed to be an artifact of the resulting depression of the glasstransition temperature.
TI - Study of the mixed alkali effect in lithium and sodium metaphosphate glass-forming liquids by photon correlation spectroscopy
JF - Journal of Physics: Condensed Matter
DO - 10.1088/0953-8984/20/28/285103
DA - 2008-07-16
UR - https://www.deepdyve.com/lp/iop-publishing/study-of-the-mixed-alkali-effect-in-lithium-and-sodium-metaphosphate-IG0VujP0Zs
SP - 285103
VL - 20
IS - 28
DP - DeepDyve
ER -