HoAlO3: A novel liquid aid for low temperature densification of SiC ceramics

In this communication, a novel liquid sintering aid consisting of Ho-Al-O elements was analyzed, using the complementary techniques of electron back-scattered diffraction (EBSD) and transmission electron microscopy (TEM). This liquid forming additive was demonstrated to be HoAlO3, showing an exact stoichiometric ratio; it had good wettability with the adjacent SiC grains.