Glass-ceramics: Deterministic microgrinding, lapping, and polishing

Glass-ceramics are composites consisting of glass and crystalline phases. We report a series of microgrinding and polishing experiments: Our first goal is to correlate material mechanical properties (Young's modulus, hardness, fracture toughness) and chemical properties (chemical susceptibility, or mass loss under (chemical attack) with the quality of the resulting surface, determined by surface microroughness and surface grinding-induced residual stresses. Our second goal is to compare deterministic microgrinding (fixed infeed) and loose abrasive infeed) and loose abrasive microgrinding (fixed pressure) in terms of material removal rates and resulting surface quality.