abstract |
Materials that seamlessly transition from opaque to transparent or translucent, such as advance ceramics to glass structures, which can be directly and seamlessly bonded without the use of an intermediate adhesive or use of a frame are disclosed. That is, a ceramic to glass structure can be bonded directly and seamlessly and without any mechanical joints, connective tissue or adhesives such as caulking or epoxy. Such ceramic to glass materials can be prepared by sintering a ceramic with a glass to form the ceramic-glass structure in which the interface is visually abruptly or in which the material is a graded composition with the desired rate of growth from one material to the other. |