Principle and Method of Refractory Pore Structure Measurement by Mercury Intrusion Method

Theoretical model and basic principle of mercury intrusion method for refractory pore structure measurement were introduced. Taking automatic mercury porosimeter AutoPore Ⅳ9500 which was produced by American micromeritics for example, operation procedure of mercury intrusion method for refractory pore structure measurement was introduced, influencing factors of measurement result by mercury intrusion method were summarized, some ways of improving the measurement accuracy were also suggested. Experimental datas of different parts of the same sample and different amount of the same sample were compared, it was showed that repetitive measurements of the same sample were essential for improving the measurement accuracy.