T-X phase diagram of (NH4)(2)SO4/H2O

Yurtseven, Hasan Hamit
Sen, S.
Salihoglu, S.
Using the mean field theory, we obtain the phase line equations for the liquid-solid I, liquid-solid II and solid I-solid II transitions in (NH4)(2)SO4/H2O. We fit our phase line equations to the experimental T-X phase diagram of this system. Thus, we are able to obtain the temperature and concentration dependencies of the order parameters and the free energies in this system.


T-P phase diagram of ammonia solid phases I, II and III
Enginer, Y; Salihoglu, S; Yurtseven, Hasan Hamit (2002-01-01)
In this study, using the mean field theory, we obtain temperature versus pressure phase diagram for the liquid and solid phases I, II, and III of ammonia. We fit, our phase line equations to the experimentally observed data. There exists good agreement between the theoretical and experimental phase lines.
P-T phase diagram at various concentrations for the NH4BrxCl1-x system
Salihoglu, S; Tari, O; Yurtseven, Hasan Hamit (2001-08-01)
We calculate here using the mean field theory, the phase-line equations for the gamma-beta, delta-beta and delta-gamma phase transitions in the NH4BrxCl1-x system. We fit our P-T phase diagrams calculated at various concentrations to the experimental data for this crystalline system. Our results show that there is a good agreement between our calculated and experimentally observed phase diagrams for the NH4BrxCl1-x system.
T-X-Br phase diagram for the NH4BrxCl1-x system
Tari, O; Yurtseven, Hasan Hamit; Salihoglu, S (Informa UK Limited, 2000-01-01)
In this study using a mean field model we calculate the phase line equations for the beta-delta, beta-gamma and gamma-delta phase transitions in the NH4BrxCl1-x system. We then fit our phase line equations to the experimentally observed T-X-Br phase diagram for this system. Our calculated phase diagram agrees well with the observed one for the NH4BrxCl1-x system.
Phase transition in compact QED3 and the Josephson junction
Onemli, VK; Tas, M; Tekin, Bayram (2001-08-01)
We study the finite temperature phase transition in 2+1 dimensional compact QED and its dual theory: Josephson junction. Duality of these theories at zero temperature was established long time ago in [1]. Phase transition in compact QED is well studied thus we employ the 'duality' to study the superconductivity phase transition in a Josephson junction. For a thick junction we obtain a critical temperature in terms of the geometrical properties of the junction.
Linear-linear basis functions for MLFMA solutions of magnetic-field and combined-field integral equations
Ergül, Özgür Salih (2007-04-01)
We present the linear-linear (LL) basis functions to improve the accuracy of the magnetic-field integral equation (MFIE) and the combined-field integral equation (CFIE) for three-dimensional electromagnetic scattering problems involving closed conductors. We consider the solutions of relatively large scattering problems by employing the multilevel fast multipole algorithm. Accuracy problems of MFIE and CFIE arising from their implementations with the conventional Rao-Wilton-Glisson (RWG) basis functions can...
Citation Formats
H. H. Yurtseven, S. Sen, and S. Salihoglu, “T-X phase diagram of (NH4)(2)SO4/H2O,” JOURNAL OF THE INDIAN CHEMICAL SOCIETY, pp. 350–353, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53050.