Mixed Alkali Suppression of Deleterious Alkali Effects In Ceramics And Glasses
Original Publication Date: 1982-Apr-01
Included in the Prior Art Database: 2005-Feb-09
Ceramics and glasses are employed in a number of critical applications. Generally, the ceramics are used as substrates, and glasses for passivating structures. Ceramic structures can contain a deliberately added glassy phase to aid in sintering, increase strength, etc. "Pure" ceramics, to which no deliberate glass additions have been made, can have traces of a glass phase because of the presence of unintentional impurities, and, moreover, truly pure polycrystalline bodies exhibit "glass-like" behavior in some properties because of the highly defective and disordered structure at grain and crystalline boundaries.