A Method for the Determination of Mesophase Contents in Mesophase Pitch by Image Analysis

A method in determination of the mesophase contents of pitches are presented. The method is based on the reflectivity difference between a mesophase part and an isotropic part. In order to get clear contrast between a mesophase part and an isotropic part, image processing is used. The method achieved accurate determination of the mesophase content from 0% to 100% in several minuets.