Creation of a superhydrophobic surface from a sublimed smectic liquid crystal

RSC Advances ◽  
2014 ◽  
Vol 4 (51) ◽  
pp. 26946-26950 ◽  
Author(s):  
Dae Seok Kim ◽  
Yun Jeong Cha ◽  
Hanim Kim ◽  
Mun Ho Kim ◽  
Yun Ho Kim ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Superhydrophobic Surface ◽  
Smectic Liquid Crystals ◽  
Smectic Liquid Crystal ◽  
Scale Structures ◽  
Dual Scale

Dual-scale structures showing superhydrophobic characteristics have been fabricated using sublimable smectic liquid crystals.

Shear flow simulations of smectic liquid crystals based on the Gay–Berne fluid and the soft sphere string-fluid

2019 ◽  
Vol 21 (1) ◽  
pp. 292-305 ◽  
Author(s):  
Sten Sarman ◽  
Yong-Lei Wang ◽  
Aatto Laaksonen
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Shear Flow ◽  
Smectic Liquid Crystals ◽  
Soft Sphere ◽  
Flow Simulations ◽  
Smectic Liquid Crystal

Smectic liquid crystal undergoing shear flow.

Direct Determination of the Anisotropy of the Magnetic Susceptibility in Smectic Liquid Crystals

1985 ◽  
Vol 40 (1) ◽  
pp. 46-51 ◽  
Author(s):  
G. Illian ◽  
H. Kneppe ◽  
F. Schneider
Keyword(s):  
Magnetic Susceptibility ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Direct Determination ◽  
Oscillation Period ◽  
Smectic Liquid Crystals ◽  
Smectic Liquid Crystal ◽  
Smectic Phases ◽  
Phase Sequence

A sample of an aligned smectic liquid crystal, suspended in a magnetic field, can be excited to oscillations. Measurement of the oscillation period allows a direct determination of the anisotropy of the magnetic susceptibility. Liquid crystals exhibiting the phase sequence isotropicnematic- smectic A can be aligned very well and precise y.A values can be determined. A direct transformation from the isotropic to the smectic phase or phase transitions between smectic phases can cause an incomplete alignment of the liquid crystal and worse results.

Alignment Of Smectic Liquid Crystal Molecules By Grated Glass And Silicon Substrates

1994 ◽  
Vol 345 ◽  
Author(s):  
L. J. Martínez-Miranda ◽  
E. Smela ◽  
H. Liu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Silicon Wafers ◽  
Temperature Cycling ◽  
Silicon Substrates ◽  
Smectic Liquid Crystals ◽  
Smectic Liquid Crystal

AbstractWe present the results of a study of the effect of photolithographed gratings on glass and silicon wafers on the alignment of smectic liquid crystal molecules. The gratings have periods in the range of 200nm − 200µm, and depths of up to 2µm. We found that smectic liquid crystals align sharply along the gratings, depending on the temperature cycling method used in loading the sample. This result applies both to silicon gratings as well as glass gratings, despite the increased roughness observed in glass gratings. The quality of the alignment is uniform in the range 664nm − 24µm, and breaks down outside this region, setting lower and upper boundaries for grating preparation.

Examination of molecular packing in orthogonal smectic liquid crystal phases: a guide for molecular design of functional smectic phases

2017 ◽  
Vol 19 (37) ◽  
pp. 25518-25526 ◽  
Author(s):  
Yasuhisa Yamamura ◽  
Takahito Murakoshi ◽  
Mafumi Hishida ◽  
Kazuya Saito
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Chain Length ◽  
Molecular Design ◽  
Molecular Packing ◽  
Smectic Liquid Crystals ◽  
Alkyl Chains ◽  
Smectic Liquid Crystal ◽  
Smectic Phases ◽  
Crystal Phases

Two modes of packing of molten alkyl chains in smectic liquid crystals are revealed through analyzing the chain-length dependence of layer spacings.

Mesophase and Glass Formation in Binary Systems of Caesium and Alkali-Earth Metal Butyrates

1999 ◽  
Vol 54 (12) ◽  
pp. 685-688 ◽  
Author(s):  
T. A. Mirnaya ◽  
V. S. Dradrah ◽  
G. G. Yaremchuk
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Glass Formation ◽  
Binary Systems ◽  
Earth Metal ◽  
Polarization Microscopy ◽  
Smectic Liquid Crystals ◽  
Alkali Earth Metal

Abstract The phase diagrams of the binary systems of non-mesomorphic components such as caesium-mag-nesium, caesium-calcium and caesium-barium butyrates have been studied by differential thermal analysis and hot stage polarization microscopy. Smectic liquid crystals are found in some composition ranges of the binaries with calcium and barium butyrates. The liquid crystal appearance in these systems is explained by the exhibition of latent mesomorphism of caesium butyrate. Glasses are obtained in all systems studied, the formation of vitreous optical anisotropic mesophase being revealed only for binary from caesium and barium butyrates.

scholarly journals Frank Matthews Leslie. 8 March 1935 – 15 June 2000

2003 ◽  
Vol 49 ◽  
pp. 315-333 ◽  
Author(s):  
R.J. Atkin ◽  
T.J. Sluckin
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Liquid Crystal Display ◽  
Nematic Liquid Crystals ◽  
Continuum Theory ◽  
Hydrodynamic Theory ◽  
Smectic Liquid Crystals ◽  
Applied Mathematician ◽  
Similar Task ◽  
Device Technology

Frank Leslie was a distinguished applied mathematician, who was above all foremost in creating the modern continuum theory of nematic liquid crystals in the late 1960s. This theory is now known as the Ericksen-Leslie theory, and the crucial elements in it as Leslie coefficients. After developing the hydrodynamic theory of nematic liquid crystals, he went on to perform a similar task in the 1990s for smectic liquid crystals. He also actively collaborated with experimentalists and engineers involved in liquid crystal applications, and his work has been extremely influential in the development of liquid crystal display (LCD) device technology.

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