Zirconia responses to edge chipping damage induced in conventional and ultrasonic vibration-assisted diamond machining

Machining-induced edge chipping damage represents a common challenge in ceramic applications. This paper reports on responses of zirconia materials with porous and dense microstructures to induced conventional ultrasonic vibration-assisted diamond machining. The machining-induced was evaluated using optical scanning electron microscopies. results show that produced these processes associated brittle fracture depends the material microstructure vibration amplitude. Pre-sintered high brittleness index yielded significantly larger than sintered low processes. Ultrasonic machining at an optimal amplitude minimized scale micro level, thus diminished distinct microstructures. investigation underpins transition from for manufacturing ceramics achieve better product quality.