Implantation of 50–2000 keV silver and gold ions into zirconiabased ceramic membranes was simulated by the Monte Carlo method in the binary collision approximation on the physical basis of SRIM/TRIM. Stopping powers, projected ranges (19–338 nm for Ag and 16–231 nm for Au), vacancies per ion (up to 6821), metal concentration and damage profiles, and sputtering yields were obtained. Defect production is governed by displacement cascades: electronic and nuclear stopping become equal at 565 keV for Ag and 1921 keV for Au. The fluences required for nanocluster nucleation and irradiation regimes for membranes were determined.