AgCu26.6Pd5 – Premium Silver‑Copper‑Palladium Vacuum Alloy
The silver-based vacuum alloy AgCu26.6Pd5, also Ag 68.4Cu26.6Pd5 or 68.4Ag26.6Cu5Pd, is used in the joining technique of metallized ceramics / metal in tube construction, as well as in vacuum apparatus construction (soldering range 810 to 900 °C).
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 10.1 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 120 GPa | |
Elongation | 20.0 °C | 12 - 20 % | |
Poisson's ratio | 23.0 °C | 0.37 [-] | Typical for Silver |
Shear modulus | 23.0 °C | 30 GPa | Typical for Silver |
Tensile strength | 20.0 °C | 410 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.9E-5 1/K | Typical for Silver |
Melting point | 962 °C | Typical for Silver | |
Specific heat capacity | 23.0 °C | 234 - 251 J/(kg·K) | Typical for Silver |
Thermal conductivity | 20.0 °C | 215 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 2.60E+7 S/m |
Electrical resistivity | 20.0 °C | 3.8E-8 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Copper | 26.6 % |
Palladium | 5 % |
Silver | 68.4 % |
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- AgCu26.6Pd5 – Premium Silver‑Copper‑Palladium Vacuum Alloy