NiCobasierte

NiCobasierte is a term used in materials science to describe materials in which nickel (Ni) and cobalt (Co) are the dominant elements. It encompasses alloys, intermetallics, and mixed oxides built around the Ni–Co system, and is often used to classify functional materials whose properties derive from nickel–cobalt interactions.

Composition and structure: NiCobasierte materials range from Ni-rich alloys and intermetallics to mixed Ni–Co oxides and sulfides. Crystalline structures may include metallic face-centered cubic or hexagonal close-packed phases, and oxide phases may adopt spinel or layered architectures. Small dopants (for example Al, Mn, Li) are used to tune performance.

Properties and applications: They generally exhibit high strength, good wear and corrosion resistance, and, in magnetic compositions, notable magnetism. In energy technology, NiCobasierte oxides and layered materials serve as battery electrodes, while NiCo alloys find use in hard coatings and magnetic devices. Catalytic variants are explored for electrolysis and hydrocarbon processing.

Synthesis and processing: Production methods include conventional alloying, powder metallurgy, electrodeposition, chemical vapor deposition, and sol–gel routes, followed by heat treatment to achieve desired phases. Processing conditions strongly influence microstructure and performance.

History and terminology: The term NiCobasierte is descriptive rather than a single compound, and definitions vary by source. In practice, researchers refer to specific compounds or alloys—such as NiCo alloys or NiCo2O4—to avoid ambiguity.