Boron nitride nanosheets as an effective strategy against the slow crack growth and hydrothermal ageing in zirconia composites

This paper explores the effectiveness of boron nitride nanosheets in preventing the premature failure of yttriastabilized tetragonal zirconia ceramics, particularly in humid environments. A simple, low-cost and scalable technique-shear exfoliation in a kitchen blender-was used to prepare BNNS, and pure zirconia and composites with 1, 2.5 and 5 vol. % BNNS were spark plasma sintered.…