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108
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Dendrite formation - effect of G & V on branching; high Co |
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109
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Dendrite formation - effect of G & V on branching; high Co; real speed |
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110
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Collumnar growth grain solution |
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111
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Phase transformation when an isotropic liquid changes to a nematic liquid crystal (magnification 20x, speed 3x). As the temperature decreases the coloured liquid crystalline phase begins to nucleate at various random points across the slide. Darker regions are visible where the director is aligned with either the polariser or the analyser. From TLP: Liquid Crystals |
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112
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Phase transformation (20x magnification, 4x speed) for isotropic liquid to nematic liquid crystal (on grooved surface). The elongated liquid crystal molecules tend to orientate along the scratches as does nucleation of the liquid crystalline phase, with the liquid crystal sweeping in from the side rather than appearing at random points. From TLP: Liquid Crystals
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113
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Phase transformation (20x magnification, 3x speed) for an isotropic liquid to chiral nematic liquid crystal. Although nucleation begins in a similar fashion to the regular nematic, we can see the different regions merge with one another to form the final ‘fingerprint structure’ that is characteristic of chiral nematics with their helical axis parallel to the surface of the slide. From TLP: Liquid Crystals |
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114
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Part 1 of the phase transformation from an isotropic liquid to a nematic liquid crystal. From TLP: Liquid Crystals |
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115
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Part 2 of the phase transformation from an isotropic liquid to a nematic liquid crystal. From TLP: Liquid Crystals |
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116
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The movement of schlieren brushes in a nematic liquid crystal. From TLP: Liquid Crystals |
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117
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Interactive, rotatable model of an S = 1 disinclination (as in a capillary tube). From TLP: Liquid Crystals |