METHOD OF DETERMINING PORE DIAMETER OF POROUS OBJECTS Russian patent published in 2018 - IPC G01N24/08 

FIELD: physics.

SUBSTANCE: using to determine the pore diameter of the porous object. Essence of invention consists in entering liquid gallium or one of the alloys in a liquid state and selected from the group consisting of gallium indium (Ga-In), gallium-tin (Ga-Sn) and gallium-indium-tin (Ga-In-Sn), into said porous object; measuring the nuclear magnetic resonance spectrum on the gallium nuclei in liquid gallium or in one of the alloys in the liquid state and selected from the group consisting of gallium indium (Ga-In), gallium-tin (Ga-Sn) and gallium-indium-tin (Ga-In-Sn), in said object with the Knight Shift determination (K) from the NMR spectrum obtained; measuring the nuclear magnetic resonance spectrum on the gallium nuclei in liquid gallium or in one of the alloys in the liquid state and selected from the group consisting of gallium indium (Ga-In), gallium-tin (Ga-Sn) and gallium-indium-tin (Ga-In-Sn), with the Knight Shift determination (Kb) from the NMR spectrum obtained; determining the pore diameter of said porous object according to a predetermined mathematical formula.

EFFECT: reduced measurement and analysis time, increased accuracy of pore size determination, reduced energy costs, increased overall safety of the method.

1 cl