Interface stability

The definition of a solid state reaction implies that the reaction product is a solid. If, for example, one of the reactants is a fluid, no deviatoric stresses are transmitted across the common interface. This situation simplifies the mechanical boundary condition significantly and explains why studies on boundary morphology are often performed with solid/fluid systems. 

---

R.F. Sekerka. Application of the time-dependent theory of interface stability to an isothermal phase transformation. J. Chem. Phys. Solids, 28(6) 983—994, 1967. 

EAI) related to interfacial area by an equation (EAI) = area of interface stabilized per unit weight of protein. Higher EAI values should indicate a more stable emulsion. 

Fig. 1 An ideal self-assembled monolayer of alkanethiolates supported on a gold surface. The terminal groups are amenable to synthesis, providing a means to immobilize and present ligands from the surface the alkyl chain spacer promotes tight, regular packing, and the gold-sulfur interface stabilizes surface atoms and alkane chains during packing...

P. Somasundaran, B. Markovic, S. Krishnakumar, and X. Yu, Colloid Systems and Interfaces - Stability of Dispersions Through Polymer and Surfactant Interaction , Ch. 14 in Handbook of Surface and Colloid Chemistry , K.S. Birdi (ed.), CRC Press, Boca Raton, Florida (1997). 

The best results were obtained by using the block copolymer surfactant SE3030 together with the nonionic initiator PEGA200 which supports interface stabilization and improves the structural perfection (Fig. 18a) of the polystyrene capsule morphology. 

The strategy of hybrid and gel electrolytes is very promising for lithium-ion batteries, but it seems less viable for lithium-metal batteries due to the reactivity of lithium metal with the encapsulated solvent. In fact, high conductivity is not the only parameter in selecting a successful polymer electrolyte for the development of lithium batteries a low interface resistance and a high interface stability over time are also required to assure good cyclability and long life. 

The stability of the metal-oxide interface The main problem here is the physical and chemical stability during heat treatment (anneal or oxidation). The metals Ta,Ti, Mo and W have been studied by Kobayashi et al.200. Only the W/Si02 interface was stable for anneals up to 1200°C. Krusin-Elbaum et al.202 came to a like wise conclusion that only the W/Si02 interface is acceptable for gate applications in a comparison of Mo/SiOz and W/Si02 interfaces. This experimental result is supported by thermodynamic calculations regarding the W/Si02 interface stability. 

An explanation of why convection occurred when brine formed in the TRS system can be given by interface stability analysis (18). During the experiments, slight tipping of the sample cells indicated that the intermediate brine phases were more dense than the mixtures of liquid crystal and brine below them. This adverse density difference caused a gravitational instability for which the smallest unstable wavelength X is given by... 

---