Textures and Defects

Voutsas, A. T. 2007. The role of structural defects and texture variability in the performance of poly-Si thin him transistors. Thin Solid Films. 515 7406-7412. 

Bculigand Y 1998 Defects and textures Handbook of Liquid Crystals Vol 1. Fundamentals ed D Demus, J Gccdby, G W Gray, H-W Spiess and V Vill (New York Wiley-VCH)... 

Defects and Textures in Nematic Main-Chain Liquid Crystalline Polymers... 

The effect of structural disclinations upon texture and the origins of these in local deformations of or discontinuities in the arrangement of the molecules have been studied only in the case of nematic MCLCPs. The primacy aim of this chapter is therefore to present to the reader defects and textures in nematic MCLCPs. Some of consequences of constructing a nematic phase from long... 

These authors have used the technique of lamellar decoration [76] which enables detailed assessment of cheu-acteristic mesophase defects and texture on a much finer scale than previously possible with conventional electron-microscopy preparations. The defects and texture existing in the polymer melt state are first retained by thermal quenching of the polymer fluid to room temperature. The glassy LCP film is then annealed above its glass transition, but below the melting point. Crystalline lamellae grow perpendicular to the local chain axis and effectively decorate the molecular director... 

Fracture of metallic filaments differs in many respects from fracture of bulk samples. Particular fabrication processes that are needed to obtain the small lateral dimensions, may introduce specific defects and textures. Their influence on the fracture behavior is discussed. The intrinsic strength and fracture behavior is mainly dependent on the microstructure. The absence of crystalline defects as in whiskers, as well as the presence... 

Amphiphilic molecules have two parts, one hydrophilic and one hydrophobic, and form liquid crystals the textures of which are of great interest, since they are very close in morphology to biological materials and, in particular, cell membranes [17-19], showing a polymorphism related to that known in water-lipid systems (see Chaps. XV to XVII of Vol. 2 of this Handbook). The lamellar structure displays some usual defects and textures (Fig. 5). The bilayers are more or less separated by water (Fig. 5 a, b) this... 

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