Advanced technical ceramics - Monolithic ceramics - General and textural properties - Part 5: Determination of phase volume fraction by evaluation of micrographs
This part of EN 623 specifies a manual method of making measurements for the determination of volume fraction of major phases in advanced technical ceramics using micrographs of polished and etched sections, overlaying a square grid of lines, and counting the number of intersections lying over each phase.NOTE 1 This method assumes that the true phase volume fractions are equivalent to area fractions on a randomly cut crosssection according to stereological principles.NOTE 2 Guidelines for polishing and etching of advanced technical ceramics can be found in Annexes A and B.The method applies to ceramics with one or more distinct secondary phases, such as fou