Changing temperature default in quickload 3.9

The viscosity model can be used to compute derivative transportproperties of glass-forming materials, such as the glass transitiontemperature ( T g) and the fragility ( m) of silicate melts. Dissolved volatile contents vary from about 0 to 8 wt% H 2O and 0 to 4 wt% F.

The multicomponent model is calibrated on melt compositions spanning oxide contents (wt.

it reproduces observed relationships between melt composition and transport properties such as glass transition temperature ( T g) and fragility ( m).

it is capable of accommodating both strong (near-ArrhenianT-dependence) and fragile (non-Arrhenian T-dependence) behaviour ofsilicate melts.

it is computationally continuous across the entire compositional and temperature spectrum of the database.

the chemical model captures the effects of 10 major and minor oxide components and the volatile components H 2O and F.

it spans most of the compositional range found in naturally-occurring volcanic rocks.

Where the M's and N's are combinations of mol % oxides. Where A is a constant independent of composition and B and C are adjustable parameters.Д¬ompositional dependence is ascribed to B and C as linear combinations of oxide components(mol%) and several multiplicative oxide cross-terms: Temperature dependence of viscosity (О·) is modelled by the VFT equation Here we present a model for predicting the non-Arrhenian temperature dependence of viscosity fornaturally-occurring silicate melts at atmospheric pressure (10 5 Pa). Earth & Planetary Science Letters, 271,В 123-134 Silicate Melt Viscosity Calculator Silicate Melt Viscosity Calculator Giordano D,Russell JK, & Dingwell DB (2008) Viscosity of Magmatic Liquids: AModel.

Changing temperature default in quickload 3.9