RUBBING SEAL MATERIAL FOR CERAMIC HEAT EXCHANGER

摘要

A coating for a rubbing seal designed to seal a ceramic matrix for a rotary regenerator in a gas turbine engine, said coating comprising primarily the oxides and halides of calcium and lithium and the sulphates and nitrates of the metals whose oxides are used in the system, whereby the coating adapts the seal system for use in an exhaust gas environment of a gas turbine engine that is relatively free from the oxides of sulfur and nitrogen and the nitrates and sulphates of various other exhaust gas constituents.