Some approaches for residual porosity estimating

Abstract

Abstract Several approaches for materials residual porosity assessment are presented in this paper. Importance of development of accurate model is shown based on Al2O3–Ce:YAG and Al2O3–Ce:(Y,Gd)AG ceramic phosphors taken as model objects. The evaluated difference in the outcomes of different methods applied for estimating porosity has been shown to be as high as ∼40%. The obtained results become applicable to another types of inclusions within the studied volume of a material as in the models under consideration the main role is given to a geometrical perspective of the problem.