Joining of Ion Transport Membranes Using a Novel Transient Liquid Phase Process

摘要

A novel transient liquid phase (TLP) or partially transient liquid phase (PTLP) ceramic-ceramic joining process has been developed that leaves behind no interfacial phase or a compatible interfacial phase, enabling the fabrication of complex systems of components. The process can be used to join and manifold components and reduce the sintering temperatures of ion transport membranes, and can be applied to other ceramic systems. This process has been tested in the joining of high temperature perovskite ion transport membranes. Using low melting point metal oxide combinations added to a more refractory metal oxide, the process has resulted in a strong joint with low porosity that is hermetic to helium.