Abstract
Uncertainties in pressure-scales have been one of the most important problems in the high-pressure science and technology. In order to overcome this problem, a method called Scale-Free Unified Analysis (SFUA) was developed to analyze P-V-T equations of state (EOS) of materials available as primary pressure-scales in high-pressure and high-temperature experiments. Here we introduce the concept and analytical procedures of SFUA, and the EOS models determined by applying the method for MgO, Au, and Pt. We will show the great advantages of SFUA to obtain most probable EOS models, and also point out some future prospects to completely dissolve the problem.
