Strength and Flawelimination Assessmentin Tape Cast Ceramic Laminates

Monolithic Al2O3 ceramic laminates were fabricated via a tape casting process. The strength of single tapes were compared with laminates using biaxial flexure tests. The average fracture stress was unchanged. However, the laminates presented a multi‐modal strength distribution. The feasibility of eliminating or diminishing void‐type flaws present in the green tapes was assessed. To this end, tapes were first punctured. then laminated and …