Abstract An oxidic solder sealing composition is provided which is suitable for selectively joining relatively high expansion glasses, ceramics and metals to each other and in combination. The solder compositions comprise a binary admixture of vanadium pentoxide, V2O5, and silver oxide, Ag2O, in the mole ratio ranging from 0.3 to 3.5 Ag2O:1.0 V2O5, and more particularly in the molar ratio of 0.5 to 3.0 Ag2O:1.0 V2O5. These solder compositions may be used in the form of rods, frit or powder, paste with conventional fugitive binders or solvents or as an aqueous suspension, such as in concentrated ammonia. In preparing these compositions, AgNO3 is mixed with finely divided V2O5 and then the two components are fused together. Subsequently, the fused mass is cooled and thereafter may be ground into a powder. Laminates and sealed surfaces are prepared from the binary solder compositions.
The laminate as defined in claim 1 wherein the mole ratio is 0.5 Ag2O:1.0 V2O5.
Claim 2
Dependent Claim
16 words
The laminate as defined in claim 1 wherein the mole ratio is 3.0 Ag2O: 1.0 V2O5.
Claim 3
Dependent Claim
27 words
A finely divided oxidic solder composition consisting essentially of a binary admixture of Ag2O and V2O5 in the mole ratio ranging from 0.3 to 3.5 Ag2O:1.0 V2O5.
Claim 4
Dependent Claim
22 words
A finely divided oxidic solder composition as defined in claim 4 wherein the mole ratio is 0.5 to 3.0 Ag2O: 1.0 V2O5.
Claim 5
Dependent Claim
44 words
A substrate selected from the group consisting of glass, ceramic, metal and carbon having adhered thereto a layer of a solder composition consisting essentially of a fused, binary admixture of Ag2O and V2O5 in the mole ratio ranging from 0.3 to 3.5 Ag2O:1.0 V2O5.
Claim 6
Dependent Claim
17 words
A substrate as defined in claim 6 wherein said mole ratio is 0.5 to 3.0 Ag2O:1.0 V2O5.
Claim 7
Dependent Claim
12 words
A substrate as defined in claim 6 wherein said substrate is metal.
Claim 8
Dependent Claim
12 words
A substrate as defined in claim 6 wherein said substrate is glass.
Claim 9
Dependent Claim
24 words
An oxidic composition consisting essentially of a binary admixture of Ag2O and V2O5 in the mole ratio ranging from 0.3 to 3.5 Ag2O:1.0 V2O5.
Claim 10
Dependent Claim
19 words
An oxidic solder composition as defined in claim 10 wherein the mole ratio is 0.5 to 3.0 Ag2O:1.0 V2O5.
Claim 11
Dependent Claim
17 words
An oxidic solder composition as defined in claim 11 wherein the mole ratio is 0.5 Ag2O:1.0 V2O5.
Claim 12
Dependent Claim
17 words
An oxidic solder composition as defined in claim 11 wherein the mole ratio is 3.0 Ag2O:1.0 V2O5.