Mengapa ini penting bagi material
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.
Apa yang menjadi bahan penyusunnya
Semua material →| Material | Apa yang dilakukannya di sini | Kepentingan |
|---|---|---|
| Aluminium kritis | Airframe skin and structure | Mendefinisikan |
| Cobalt kritis | Superalloy binder and magnets | Mendefinisikan |
| Gallium kritis | Radar transmit-receive modules | Mendefinisikan |
| Hafnium kritis | Superalloy and control rods | Mendefinisikan |
| Nickel kritis | Superalloy for hot sections | Mendefinisikan |
| Rhenium kritis | Single-crystal superalloy | Mendefinisikan |
| Titanium kritis | Airframe and engine structure | Mendefinisikan |
| Antimony kritis | Ammunition primers and flame retardants | Penting |
| Beryllium kritis | Optics and inertial guidance | Penting |
| Germanium kritis | Infrared optics | Penting |
| Samarium kritis | High-temperature magnets | Penting |
| Tantalum kritis | Superalloy and capacitors | Penting |
| Tungsten kritis | Penetrators and counterweights | Penting |
| Yttrium kritis | Thermal barrier coatings | Penting |
| Scandium kritis | High-strength aluminium alloy | Saat ini |
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…
