1. Introduce
– Metal with low melting point, soft, malleable and ductile
– It is mainly applied as an alloy and solder due to its good property of alloying with other metals and excellent adhesion
– In alloying element influence: improve strength, prevent brittleness
2. Property
– Excellent ductility, conductivity, oxidation resistance, and thermal conductivity
[In Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| 3.35 | 2 | 41 |
[In Physical Properties]
| Density (g/㎤) | Melting Range (℃) | Electrical resistivity (µΩ∙㎝) | Specific Heat (J/kg∙℃) | Thermal Conductivity (W/mK) | Coefficient of Thermal Expansion (µm/m°C) |
|---|---|---|---|---|---|
| 7.29 | 156.7 | 8 | 230 | 86 | 24.8 |
3. Application
– Liquid crystal displays of LCD TVs and laptops, bipolar transistors, semiconductors, gaskets, soldering of CPUs, conductive adhesives, cryogenic devices, bearings, anti-cancer drugs
(1) Bipolar transistors / (2) Gaskets / (3) Soldering of CPUs / (4) Conductive adhesives
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