Characterization of Large Defects in Alumina Green Compacts with Liquid Immersion-Polarized Light Microscopy(Physics, Processes, Instruments & Measurements)

概要

論文の詳細を見る
We have confirmed that coarse particles and pores in alumina green compacts can be precisely detected with liquid immersion-polarized light microscopy. The experiments were performed on the green compacts containing artificially induced coarse particles and pores. An optimum calcination temperature was chosen to be compatible for adequate strength of specimen for handling and with no significant microstructural change by densification. The sample fixture was developed in order to prepare the thin specimen with consistent thickness to provide consistent images. The technique successfully reveals the coarse particles for both single- and poly-crystalline compacts with right shapes and sizes. Where coarse particles and pores co-existed, their images were clearly discriminated due to their anisotropic and isotropic behavior under polarized light.
大阪大学の論文