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2 152 909

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IPC

(21) (22)

Application

98102550/03, 1998-02-16

(24)

Start date

1998-02-16

(22)

Actual filing date

1998-02-16

(45)

Published

2000-07-20

(72)

Inventor

Rachkovskaja Galina EvtikhievnaPoljakov V.B.(Ru)Semenkova O.S.(Ru)Poljakov A.V.(Ru)

(73)

Holder

Belorusskij Gosudarstvennyj Tekhnologicheskij UniversitetSktb Ehlektroniki, Priborostroenija I Avtomatizatsii

LOW-MELTING GLASS Russian patent published in 2000 - IPC

Abstract RU 2152909 C2

FIELD: technology of glass, more particularly use as solder and sealant in manufacture of high-temperature thermally sensitive quartz resonators. SUBSTANCE: low-melting glass for soldering and sealing monocrystalline Z-cut quartz comprises wt.%: PbO, 80.5- 82.5; B₂O₃, 5.5-7.5; SiO₂, 0.5-0.9; ZnO, 5.5-6.5; Cu₂O, 1.0- 1.5; Bi₂O₃, 1.0-2.5; Co₂O₃, 1.5-3.5. EFFECT: lower TKLP and higher softening and soldering temperature of glass. 2 tbl

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RU 2 152 909 C2

Authors

Rachkovskaja Galina Evtikhievna

Poljakov V.B.(Ru)

Semenkova O.S.(Ru)

Poljakov A.V.(Ru)

Dates

2000-07-20—Published

1998-02-16—Filed