Sol-gel method for the preparation of monolithic multicomponent

Details Sol-gel method for the preparation of monolithic multicomponent Sol-gel method for the preparation of monolithic multicomponent

1991-10-25

1993-04-27

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 55, 501 60, 501 62, 501 64, 501 68, 501900, 423332, 423338, 423339, C03C 300, C03C 3076, C03C 3095

Patent

active

052061892

ABSTRACT:
An improved method for the production of a monolithic multicomponent oxide glass is achieved by forming an oxide host gel by a sol-gel process, placing the host gel in an aqueous solution of a salt of at least one metal selected from the group consisting of Li, Na, K, Rb, Cs, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Pb, precipitating the metal salt in the gel and sintering the gel containing the precipitated salt. The method can incorporate large amounts of metals into the glass which are otherwise difficult or impossible to incorporate into precursor gels by conventional methods.

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Journal of Non-Crystalline Solids, vol. 121, 1990, pp. 61-65, H. Maeda, et al., "Reduction of Lead Migration During Drying of a Gel".
Journal of Non-Crystalline Solids, vol. 99, 1988, pp. 160-167, M. Yamane, et al., "Preparation of Pb-Containing Glass by the Sol-Gel Process".

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