Malzemeler açısından neden önemli
An aero-engine turbine blade sits in gas hotter than the alloy's melting point and survives because of rhenium, hafnium and a ceramic coating. That is why a few tonnes of a by-product metal can be a national-security question.
Neden yapılmıştır
Tüm malzemeler →| Materyal | Burada ne işe yarar | Önem |
|---|---|---|
| Aluminium kritik | Airframe skin and structure | Tanımlama |
| Cobalt kritik | Superalloy binder and magnets | Tanımlama |
| Gallium kritik | Radar transmit-receive modules | Tanımlama |
| Hafnium kritik | Superalloy and control rods | Tanımlama |
| Nickel kritik | Superalloy for hot sections | Tanımlama |
| Rhenium kritik | Single-crystal superalloy | Tanımlama |
| Titanium kritik | Airframe and engine structure | Tanımlama |
| Antimony kritik | Ammunition primers and flame retardants | Önemli |
| Beryllium kritik | Optics and inertial guidance | Önemli |
| Germanium kritik | Infrared optics | Önemli |
| Samarium kritik | High-temperature magnets | Önemli |
| Tantalum kritik | Superalloy and capacitors | Önemli |
| Tungsten kritik | Penetrators and counterweights | Önemli |
| Yttrium kritik | Thermal barrier coatings | Önemli |
| Scandium kritik | High-strength aluminium alloy | Günümüz |
Aluminium
A light silvery metal made by passing an enormous electric current through dissolved bauxite — which is why people…
Cobalt
A hard, bluish metal that keeps a battery's cathode stable so it does not overheat, and that holds its strength when…
Gallium
A silvery metal that melts in your hand, and the basis of the compound semiconductors in fast chargers, radar and…
Hafnium
Zirconium's chemical shadow — always found with it, almost impossible to separate from it, and the opposite of it in…
Nickel
A silvery metal that resists rust, which is why it goes into stainless steel — and, more recently, into the cathodes…
Rhenium
One of the rarest metals in the crust, recovered from molybdenum roasting, and the ingredient that lets a jet turbine…
