2012
DOI: 10.1103/physreve.85.061708
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Aspect ratio and polydispersity dependence of isotropic-nematic transition in discotic suspensions

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Cited by 54 publications
(83 citation statements)
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“…Typically I-N and N-C transitions are observed for small to moderate aspect ratios a. Theoretical studies have shown that as aspect ratio increases, colloidal discs show I-N transitions at progressively lower volume fractions 44 . Direct I-C transitions can be observed at high volume fractions 45 .…”
Section: Discussionmentioning
confidence: 99%
“…Typically I-N and N-C transitions are observed for small to moderate aspect ratios a. Theoretical studies have shown that as aspect ratio increases, colloidal discs show I-N transitions at progressively lower volume fractions 44 . Direct I-C transitions can be observed at high volume fractions 45 .…”
Section: Discussionmentioning
confidence: 99%
“…Charged platelet suspensions, such as swelling clays [1][2][3][4][5][6][7][8], disk-like mineral crystallites [9][10][11][12][13][14][15][16] or exfoliated nanosheets [17][18][19][20][21][22] abound in natural as well as industrial environments. Such minerals can be found in various particle sizes varying between 10 nm up to a few micrometers and the majority of them have a platelet-like shape with high aspect ratio, typically ranging between 20 and 1000.…”
Section: Introductionmentioning
confidence: 99%
“…14. Текстуры и схемы фаз дисперсии LaPO 4 в этиленгликоле [38] В работе [39] были исследованы электрооп-тические свойства нематической и колумнарной фазы. Образцы нематика имели концентрацию φ = 1,55 %, колумнарика -4,34 %.…”
Section: рис 13 текстуры дисперсии Gapounclassified
“…Когда электрическое поле сни-малось, образцы стремились восстановить перво-начальную ориентацию. Интересно, что критиче-ские поля ориентации и нематика и колумнарика очень низки, примерно 0,05 В·мкм c -ξ = 0,0039, φ = 0,014; d -ξ = 0,0027, φ = 0,02; e -ξ = 0,0019, φ = 0,042; f -ξ = 0,0011, φ = 0,06 [39] Полидисперсность влияет на концентраци-онную зависимость фазового перехода изотроп -нематик. Интересно, что эта дисперсия, в отличие от других аналогичных дисперсий, является тер-мочуствительной.…”
Section: рис 13 текстуры дисперсии Gapounclassified