Melt time

The physical significance of melting time has not been well handled before. Equation (5.77) is in fact the definition of melting time. It can be seen from Eq. (5.77) that if / = O, then P = 0 and if / —> 1, then T oo. Accordingly, increasing melting time reflects increasing... 

According to Chapter 4, when the degree of partial melting F is not too small, and melting time T is large, the U-Th disequilibrium may be described by the following relationship ... 

Melt time, seconds Type of UV lamp UV dose, mJ/cm2... 

Boley proceeds to find solutions for short times after melting in powers of the square root of the dimensionless post-melting time and indicates a numerical scheme for continuing the solution. The results are in good agreement with those of Landau for equivalent conditions. 

The memory effect has important implications for the gas industry. For example, after hydrates initially form in a pipeline, hydrate dissociation should be accompanied by the removal of the water phase. If the water phase is not removed, the residual entity (i.e., residual structure, persistent crystallites, or dissolved gas) will enable rapid reformation of the hydrate plug. Conversely, if hydrate formation is desired, the memory effect suggests that hydrate formation can be promoted by multiple dissociation and reformation experiments (provided the melting temperature is not too high, or melting time is not too long). 

Effect of Molecular Weight and Melt Time and Temperature on the Morphology of Poly(tetrafluorethylene)... 

---