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It is a composite ceramic material with zirconia grains in the alumina matrix. It is also known in industry as ZTA. Zirconia alumina (or zirconia toughened alumina), a combination of zirconium oxide and aluminum oxide, is part of a class of composite ceramics called AZ composites. Noted for their mechanical properties, AZ composites are ...
Aluminium oxynitride is the hardest polycrystalline transparent ceramic available commercially. [ 2 ] [ needs update ] Because of its relatively low weight, distinctive optical and mechanical properties, and resistance to oxidation or radiation, it shows promise for applications such as bulletproof , blast-resistant, and optoelectronic windows ...
In materials science, a metal matrix composite (MMC) is a composite material with fibers or particles dispersed in a metallic matrix, such as copper, aluminum, or steel. The secondary phase is typically a ceramic (such as alumina or silicon carbide ) or another metal (such as steel [ 1 ] ).
Ceramics and composites (including composite metals) — high toughness, fire resistance and anti-friction properties, insulating properties. Known use in several products such as burner discharge lamp, the substrate of integrated circuits, shut-off elements ceramic pipeline valves, prostheses, etc.
Nanocomposite ceramic materials also offer interesting mechanical properties not achievable in other materials, such as superplastic flow and metal-like machinability. It is anticipated that further development will result in high strength, high transparency nanomaterials which are suitable for application as next generation armor.
A cermet can combine attractive properties of both a ceramic, such as high temperature resistance and hardness, and those of a metal, such as the ability to undergo plastic deformation. The metal is used as a binder for an oxide, boride, or carbide. Generally, the metallic elements used are nickel, molybdenum, and cobalt.
Known as alpha alumina in materials science, and as alundum (in fused form) or aloxite [27] in mining and ceramic communities, aluminium oxide finds wide use. Annual global production of aluminium oxide in 2015 was approximately 115 million tonnes, over 90% of which was used in the manufacture of aluminium metal. [7]
The occupancy of metal sites in the lattice is lower than one, and thus, while the material is usually identified with the formula AlMgB 14, its chemical composition is closer to Al 0.75 Mg 0.75 B 14. [7] [8] Such non-stoichiometry is common for borides (see crystal structure of boron-rich metal borides and boron carbide).