Composite bushing with a monolithic ceramic core

A high temperature bushing 10 includes an inner core 12 made of a monolithic ceramic material having a through-hole 14 formed therein of predetermined diameter; and an outer housing 24 substantially encasing the inner core 12, the outer housing 24 made of a ceramic composite matrix material. A method of making the bushing 10 the bushing includes the steps of a) forming an inner core 12 of silicon nitride or silicon carbide having a through-hole 14 of predetermined diameter; and b) applying a ceramic matrix composite material over substantially all of the inner core 12.