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Solder Glass Sealing
Author(s) -
DALTON ROBERT H.
Publication year - 1956
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1956.tb15633.x
Subject(s) - devitrification , soldering , materials science , annealing (glass) , melting point , metallurgy , glass melting , ampoule , composite material , mineralogy , crystallization , geology , chemical engineering , engineering
The development of low‐melting solder glasses which make possible the sealing of ordinary glasses at temperatures near their annealing point is described. The properties required of such solder glasses are discussed and some compositions which meet these requirements are given. The high‐lead region of the system PbO‐B 2 O 3 ‐Al 2 O 3 ‐SiO 2 is taken up in detail. The effect of the addition of ZnO to this system is also considered. Devitrification is a problem in the use of some of these glasses. The technique of applying the solder glass in various types of seals is described. The advantages and disadvantages of this kind of sealing are pointed out.