Surface nucleation comment

Comment on evidence for surface-initiated homogeneous nucleation

We investigate theoretical, laboratory, and atmospheric evidence for a recently proposed hypothesis: homogeneous ice nucleation initiates at the surface, not in the volume, of supercooled water drops. Using existing thermodynamic arguments, laboratory experiments, and atmospheric data, we conclude that ice embryo formation at the surface cannot be confirmed or disregarded. Ice nucleation rates ...

COMMENTS Comment on: “Self-consistency correction to homogeneous nucleation theory”

A modified expression for the rate of homogeneous nucleation from an ideal supersaturated vapor was recently derived,’ in which the rate given by the classical expression was multiplied by a factor co/S, where S is supersaturation, 8 = (as,/kT), r+ is surface tension, and s, is monomer surface area. This factor represents an often large and temperature-dependent correction to the classical expr...

Interactive comment on “Surface charge-induced orientation of interfacial water suppresses heterogeneous ice nucleation on α-alumina (0001)” by Ahmed Abdelmonem et al

Determination of the Nucleation and Crystallization Parameters for Making Nanoporous Titanium Phosphate Glass-ceramics

Nanoporous glass-ceramics were prepared with composition 45CaO-25TiO2-35P2O5 (mol%). Two molar percent of Na2O was added as a flux to the composition. With the aforementioned composition, glass melted and crystallized into glass-ceramics containing β-Ca3(PO4)2 and CaTi4(PO4)6 as the main phases. The differential thermal analysis (DTA) was conducted to determine the suitable temperatures f...

Interactive comment on “Not all feldspar is equal: a survey of ice nucleating properties across the feldspar group of minerals” by A. D. Harrison et al

The present study provides an overview of the ice nucleation activity of different feldspars varying in their chemical composition and crystal structure. In total 15 different feldspars including plagioclase and alkali feldspars were analyzed for one weight percentage using a special freezing array method called μl-NIPI (microliter Nucleation by Immersed Particle Instrument). Additionally, the ...