In this work we have studied the effect of exchange interactions between the gluons of
order on the pressure and phase diagram of quark – gluon plasma, where we
have studied both of them as function of temperature and chemical potential, and we
as
sumed that, the plasma composed of just two massless quarks (the up and down quark)
which exchange interaction.
The bag model has been used, where the bag B and coupling constants were assumed to
be independent of temperature and chemical potential. We have found that the gluons
interactions of order had a negative effect on the pressure of the plasma, which cause
the quarks to stay in the confined phase, and then increases the critical temperature where
the hadrons dissolve to quarks and gluons. We have showed that, the results depend
strongly on the values of both the coupling and bag constants which had been used.
Lead and sodium molybdates form one of the most promising chemical compounds
because of their various and important properties when used in many different technological
applications such ceramic preparation, melting resistance materials and used in
solar energy
applications.
This research aims to study the equilibriums phases in the binary system of sodium
molybdate with lead molybdate. We used there for tow techniques :The technique of X-ray
diffraction, and technique of differential thermal analysis to study some physical properties.
The result of this research was the obtaining of a solid solution based on a lead
molybdates, where the sodium molybdate is dissolved in the lead molybdateup to 40 %
molar percentage.
In this research study Toisat phase in bilateral Wholesale (NaVO3-CaMoO4) in vitro
(in the laboratories of the Faculty of Science), where is the concept of phase transitions, the
basis for many of the natural sciences chemistry , physics and biolog
y, which is the
premise of science engineering, mechanical and electrical such as engineering and
materials engineering. Transitions are considered the metaphase common in nature, it has
benefited rights in the development and improvement of old materials, which was able to
elaborate the phase transitions unfamiliar (Fluid high, conductivity high, glass metals) and
in which they can solve many of the technical problems that were facing the technology,
and this is still the door open as long as the will to improve life on the basis of scientific
progress exist.
??When examining any material changes within the stages, studying the so-called
scheme of balance or eccentric scheme, since the material balance energy Minimal when
changing variables Altermdinamekih. Practically impossible to reach a state of
equilibrium, lies the importance of research to obtain crystalline compounds in the binary
strings of dead sodium vanadate with calcium molybdate what these salts from the
properties of the quality in the areas of technology, so it was important to study the
possibility of obtaining new phases at different Molar ratios and fee balances schemes her
eccentric. Especially since the salts derived for the study have different crystalline
structures and can therefore predict that the outputs of the study will be important and
good.
This study shows form the core of a solution on the basis of calcium molybdate
where dissolved sodium molybdateMataffanadat in calcium up to 40% of sodium
Mataffanadat.
