The phrase "as a key material" is correct and usable in written English.
It can be used when discussing the importance or essential nature of a specific material in a particular context, such as manufacturing, construction, or research.
Example: "In the production of high-performance batteries, lithium is often regarded as a key material due to its unique properties."
Alternatives: "as an essential component" or "as a crucial element".
Aluminum is emerging as a key material system to replace environmentally unacceptable cadmium, especially for application on high strength steels.
It can also be concluded that higher amount of mineral admixtures combined with small fractions of nanopowders could be promising technique toward high performance concrete as a key material along with energy saving in construction and building technology.
The plated permalloy film has played an important role since 1979 as a key material for the head core of thin film head, ever since IBM shipped the first hard disk drive (HDD) using a thin film head in 1979.
Metal-polymer composites were studied as a key material for transistor construction in electronics industry[6].
Besides, magnetic nanoparticles are also being utilized as a key material for magnetic ferrofluid [8], catalysis [9], data storage [10], and environmental remediation [11].
Zinc sulfide (ZnS) is an important wide band gap (3.60 eV) semiconductor and used as a key material for large range of applications [1 3].
Silicon is a key material in many industrial sectors as metallurgy, electronics, and photonics.
The server secret number v can be used as a session key material and h (v) can be used as a session key which is shared with the server.
Shikimic acid is a high valued compound used as a key starting material for the synthesis of the neuramidase inhibitor GS4104, which was developed under the name Tamiflu® for treatment of antiviral infections.
Bisphenol A (4,4′-isopropylidenediphenol, BPA) is widely used as a key raw material in the manufacture of polycarbonate plastic and epoxy resins.
Hardware security modules can be used to store secret data, such as key material, in a way that is more difficult to access by an attacker.
