MECHANICAL SEALS AND METHODS OF MAKING

摘要

A mechanical seal includes a pair of opposing seal faces (10), wherein at least one of the pair of seal faces (10) includes a multilayer coating (14) disposed on a substrate (12), wherein the multilayer coating (14) has a periodic repetition of distinct layers, a plurality of layers of a composite wherein no two adjacent layers of the composite comprise an identical ratio of composite constituents, or both. A method includes disposing a multilayer coating (14) on a substrate (12) to form at least one of a pair of opposing seal faces (10) of a mechanical seal.