Preferences help
enabled [disable] Abstract
Number of results
2017 | 131 | 4 | 949-951
Article title

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

Title variants
Languages of publication
A binary mixture of bent-core and rod-shaped liquid crystals was chosen as a model substance combining the properties of both types of liquid crystals. The mixture was doped with a small amount of spherical and rod-like magnetic nanoparticles. Differential scanning calorimetry experiments were performed for the pure as well as for the doped mixture at different heating rates ranging from 1 to 16°C/min. The addition of the magnetic nanoparticles lowered the phase transition temperature. This effect is more intensive in the case of the rod-like magnetic nanoparticles. The kinetics of the nematic to isotropic phase transition was evaluated in the framework of the differential isoconversional method. The calculated apparent activation energy showed non-monotonic behaviour and a sensitivity on the shape of added magnetic nanoparticles.
Physical description
  • [1] J.P.F. Lagerwall, G. Scalia, Curr. Appl. Phys. 12, 1387 (2012), doi: 10.1016/j.cap.2012.03.019
  • [2] B. Kundu, R. Pratibha, N.V. Madhusudana, Eur. Phys. J. E 31, 145 (2010), doi: 10.1140/epje/i2010-10556-8
  • [3] D.Z. Obadović, A. Vajda, A. Jákli, A. Menyhárd, M. Kohout, J. Svoboda, M. Stojanović, N. Éber, G. Galli, K. Fodor-Csorba, Liq. Cryst. 37, 527 (2010), doi: 10.1080/02678291003692672
  • [4] S. Neuenfeld, C. Schick, Thermochim. Acta 446, 55 (2006) doi: , doi:10.1016/j.tca.2006.05.005
  • [5] M. Chen, M. Du, J. Jiang, D. Li, W. Jiang, E. Zhuravlev, D. Zhou, C. Schick, G. Xue, Thermochim. Acta 526, 58 (2011) doi: , doi:10.1016/j.tca.2011.08.020
  • [6] M. Mishra, R. Dabrowski, R. Dhar, J. Mol. Liq. 213, 247 (2016) doi: , doi:10.1016/j.molliq.2015.11.007
  • [7] N. Tomašovičová, M. Timko, Z. Mitróová, M. Koneracká, M. Rajňák, N. Éber, T. Tóth-Katona, X. Chaud, J. Jadzyn, P. Kopčanský, Phys. Rev. E 87, 014501 (2013), doi: 10.1103/PhysRevE.87.014501
  • [8] F. Brochard, P.G. De Gennes, J. Phys. (France) 31, 691 (1970), doi: 10.1051/jphys: 01970003107069100.jpa-00206970
  • [9] P. Kopčanský, N. Tomašovičová, M. Koneracká, V. Závišová, M. Timko, M. Hnatič, N. Éber, T. Tóth-Katona, J. Jadzyn, J. Honkonen, E. Beaugnon, X. Chaud, IEEE Trans. Magn. 47, 4409 (2011), doi: 10.1109/TMAG.2011.2160618
  • [10] H.E. Kissinger, J. Res. Natl. Bur. Stand. 57, 2712 (1956), doi: 10.6028/jres.057.026
  • [11] P. Budrugeac, J. Therm. Anal. Calorim. 68, 131 (2002), doi: 10.1023/A:1014932903582
  • [12] A. Juríková, K. Csach, J. Miškuf, N. Tomašovičová, Z. Mitróová, V. Závišová, M. Koneracká, P. Kopčanský, M. Timko, N. Éber, K. Fodor-Csorba, A. Vajda, Acta Phys. Pol. A 127, 638 (2015), doi: 10.12693/APhysPolA.127.638
Document Type
Publication order reference
YADDA identifier
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.