Patent ID: 8372522
Filing Date: 2013-02-12
Classification: B32B,C04B,Y10T

Abstract:
1. A composite article, comprising: a SiC ceramic part, a brass part, and a connecting layer that connects the SiC ceramic part to the brass part, wherein the connecting layer is formed by placing a Ti foil and a Ni foil between the SiC ceramic part and the brass part with the Ti foil abutting the SiC ceramic part and the Ni foil abutting the brass part, then heating and pressing the SiC ceramic part, the brass part, the Ti foil and the Ni foil; wherein the connecting layer includes a first transition layer adjacent to the SiC part, a Ti layer, a second transition layer, a Ni layer, and a third transition layer adjacent to the brass part, and in that order; the third transition layer located between the Ni layer and the brass part mainly includes Ni—Cu solid solutions; and the thermal expansion rate of the connecting layer gradually changes from that of the first transition layer to that of the third transition layer.