Non-isothermal kinetics of melting and nematic to isotropic phase transitions of 5CB liquid crystal

2010 ◽  
Vol 102 (2) ◽  
pp. 627-632 ◽  
Author(s):  
Dipti Sharma
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Isothermal Kinetics ◽  
Isotropic Phase ◽  
5Cb Liquid Crystal ◽  
Kinetics Of

scholarly journals Kinetics of Nematic to Isotropic Phase Transition in Liquid Crystal Doped with Magnetic Nanoparticles

2017 ◽  
Vol 131 (4) ◽  
pp. 949-951 ◽  
Author(s):  
K. Csach ◽  
A. Juríková ◽  
J. Miškuf ◽  
N. Tomašovičová ◽  
V. Gdovinová ◽  
...  
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Magnetic Nanoparticles ◽  
Isotropic Phase ◽  
Kinetics Of

Temperature Dependence of the Luminescence Spectra of a 5CB Liquid Crystal and its Phase Transitions

2018 ◽  
Vol 85 (5) ◽  
pp. 904-908 ◽  
Author(s):  
G. V. Klishevich ◽  
N. D. Kurmei ◽  
V. I. Melnik ◽  
A. G. Tereshchenko
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Temperature Dependence ◽  
Luminescence Spectra ◽  
5Cb Liquid Crystal

Effects of surface-extended inorganic particles on phase transitions and luminescence properties of 5CB liquid crystal

2020 ◽  
Vol 696 (1) ◽  
pp. 55-64
Author(s):  
Tamara Bezrodna ◽  
Georgyi Klishevich ◽  
Volodymyr Melnyk ◽  
Vira Nesprava ◽  
Olexandr Roshchin ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Luminescence Properties ◽  
Inorganic Particles ◽  
5Cb Liquid Crystal

scholarly journals Tricritical Phenomena and Cascades of Temperature Phase Transitions in a Ferromagnetic Liquid Crystal Suspension

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 639
Author(s):  
Timur Khalilov ◽  
Dmitriy Makarov ◽  
Danil Petrov
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Nematic Phase ◽  
Magnetic Particles ◽  
Spontaneous Magnetization ◽  
Order Parameters ◽  
Isotropic Phase ◽  
Temperature Phase ◽  
Temperature Dependences ◽  
Expansion Coefficients

We consider temperature-driven phase transitions occurring in a liquid crystal suspension of ferromagnetic particles within the Landau–de Gennes theory. The temperature dependences of the order parameters in the uniaxial model with a vector order parameter for the magnetic subsystem are obtained. The dimensionless expression for the free energy density of the suspension has been used for the study of the phase behavior general regularities of the system. Phase state diagrams of the suspension and temperature dependences of the order parameters of the liquid crystal and the ensemble of magnetic particles for different values of the phenomenological expansion coefficients are constructed. It is shown that the considered model admits the existence of a cascade of temperature phase transitions: isotropic phase–superparamagnetic nematic phase–ferromagnetic nematic phase. We have shown that in the mesomorphic state of the liquid crystal, the spontaneous magnetization can appear in a continuous way or by a jump with decreasing temperature, which corresponds to the tricritical behavior. The values of temperature and expansion coefficients corresponding to the tricritical and triple points are numerically found.

TRANSITIONS FROM SMECTIC C* TO ISOTROPIC PHASE IN AN APPLIED ELECTRIC FIELD

1995 ◽  
Vol 09 (13) ◽  
pp. 791-799 ◽  
Author(s):  
I. CUCULESCU ◽  
A. L. ALEXE-IONESCU ◽  
R. BENA ◽  
C. GHIZDEANU ◽  
V. STOIAN ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Transition Temperature ◽  
Electric Field ◽  
Applied Electric Field ◽  
Isotropic Phase ◽  
Transition Temperatures ◽  
Smectic A ◽  
Smectic C

The transition temperatures from smectic C* to isotropic phase of a liquid crystal have been recorded as a function of an applied electric field. In addition to recent investigations on the phase transitions from smectic C* to smectic A in an electric field, we have found, in our case, a decrease of the transition temperature with the electric field. An explanation has been suggested to this behavior and a formula has been obtained which fits well the experimental points.

Non-isothermal Kinetics of Free Radical Polymerization of 2-Phenylethyl (Meth)acrylate

2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Isothermal Kinetics ◽  
Kinetics Of
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