لماذا يهم في مجال المواد
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.
مم هو مصنوع
جميع المواد →| المادة | ما الذي يؤديه هنا | الأهمية |
|---|---|---|
| Aluminium حرج | Airframe skin and structure | تعريف |
| Cobalt حرج | Superalloy binder and magnets | تعريف |
| Gallium حرج | Radar transmit-receive modules | تعريف |
| Hafnium حرج | Superalloy and control rods | تعريف |
| Nickel حرج | Superalloy for hot sections | تعريف |
| Rhenium حرج | Single-crystal superalloy | تعريف |
| Titanium حرج | Airframe and engine structure | تعريف |
| Antimony حرج | Ammunition primers and flame retardants | مهم |
| Beryllium حرج | Optics and inertial guidance | مهم |
| Germanium حرج | Infrared optics | مهم |
| Samarium حرج | High-temperature magnets | مهم |
| Tantalum حرج | Superalloy and capacitors | مهم |
| Tungsten حرج | Penetrators and counterweights | مهم |
| Yttrium حرج | Thermal barrier coatings | مهم |
| Scandium حرج | High-strength aluminium alloy | الحاضر |
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…
