9 research outputs found
Equation of State for Water in the Small Compressibility Region
The equation of state for dense fluids has been derived within the framework
of the Sutherland and Katz potential models. The equation quantitatively agrees
with experimental data on the isothermal compression of water under
extrapolation into the high pressure region. It establishes an explicit
relationship between the thermodynamic experimental data and the effective
parameters of the molecular potential
A method of estimating the content of crystalline phases in multiphase samples based on X-ray diffraction data
A method for estimating the relative content of crystalline phases of a
multiphase sample, based on probabilistic analysis of the intensities of the
diffraction pattern reflexes, has been developed. The method is based on the
introduction of some numerical parameter, which uniquely characterizes the
diffraction pattern, and comparison of the diffraction patterns according to
this parameter, using methods of computational statistics. In situations where
the absorption coefficients of the phases are close, the method works solely on
the analysis of the diffraction pattern data from a specific multiphase sample.
It is shown on the control measurements that the uncertainty of the estimates
does not exceed ~\%.Comment: 17 pages, 5 figure