Breaking of lamellae

Agitation of the interface, resulting in the formation of lamellae that break up into small droplets... 

The two surfactant films must fuse, forming a neck with direct contact between the dispersed liquid in the two droplets. Clearly, if the two surfactant films are poorly developed the lamella will rupture easily, while a fully saturated film could resist the fusion process. FIuc(nations of the surfactant surface density can trigger the fusion process. Temporarily bare spots attract each other and can break the lamella locally. 

Oil Droplet-Foam Film Interaction. The commonly known mechanism in the literature by which oil droplets affect foam stability is, as previously mentioned, the mechanism of oil droplet spreading ( ). It is suggested that during the process of foam lamella thinning, the oil droplets are squeezed between the film surface and spread on one of the film surfaces (in the form of lenses) eventually then spreading also on the second film surface. Finally, it is assumed that an "island of oil is formed which breaks the lamella (thick film) ... 

Fig. 5. Fracture surface of the ZrC/Ti3AlC2 composite, showing a predominant transgranular fracture. The arrows indicate the delamination along the Ti3AIC2 basal planes in (a) and the breaking of delaminated Ti3AlC2 lamellas in (b).

A slightly different regeneration procedure consists of putting the colloidal dispersion under sonication before treatment with HCl, in order to break up the aggregates of lamellae. The suspension of delaminated... 

A deformation of a lamellar block copolymer in the direction perpendicular to the lamellae orientation results in processes of kinking, breaking, and twisting of lamellae, yielding a fish-bone structure or chevron morphoiogy. 

In the present load-cycling study, macroscopically the peak stress is well above the transition threshold. Thus in pure PP and in the blend many crystallites break. During the elongational branch of the cycles pieces of lamellae are moved apart. They recombine in the relaxational branch of the cycle. In the well-bonded composite the... 

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