Sandia National Laboratories, Albuquerque, N.M., has developed a new type of phosphate glass that could allow aerospace electronic components to be hermetically sealed in lightweight aluminum casings. Currently, the high furnace temperatures used to flow and melt critical silicate-based glass pin seals necessitates the use of steel hermetic cases. The molecular structure of phosphate glass is modified through the incorporation of aluminum oxide, according to Richard Brow, principal ...


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