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Metals |
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Name |
Description |
Synthesis |
Applications |
Disadvantages |
Advantages |
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Bronze |
Sn-Cu alloy |
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Gold |
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Cupellation-With heat and Pb, Cu dissolves in PbO separating from Au/Ag Cementation-With heat and salt, Ag corrodes away from Au |
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Nickel alloy |
75% Ni, 5% W, 20% Al |
Directional solidification, etched quartz sliver for cooling vent |
Superalloy Turbine Blades |
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W, Ni3Al decrease high temperature creep effects High strength |
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Copper |
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Start with Cu2S and oxidize, then reduce with Cu2S to obtain pure Cu |
Interconnects in circuit boards |
High diffusion in Si02/Si |
Higher thermal conductivity than Al |
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Iron |
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Reduce Fe2O3 with charcoal |
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Stronger than Cu swords |
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Pb-Sn solder |
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Provides electrical and mechanical connection between chip and module in circuit boards |
Environmental hazard |
Low melting point |
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Mg |
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Reactive, fire hazard |
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Be |
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Health hazard from breathing in dust |
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