Source:      Reprinted from The Science of Ceramics Machining and Surface Finishing II, B. J. Hockey and R. W. Rice, editors, National Bureau of Standards Special Publication 562 (U. S. Government Printing Office, Washington, D. C.,  1979)

Abstract:    Various machining methods tha6t have been evaluated to produce ceramic turbine components from high-strength ceramic materials are discussed. These machining methods are compared in terms of economics, dimensional tolerances, surface finish, and strength of the resulting product. Special emphasis is on the machining methods developed for fabrication of rotor blades form hot-pressed silicon nitride (Si₃N₄). Key Words:  As-machined material strength; dimensional tolerances; profile grinding; silicon nitride; ultrasonic machining.