Nickel Powders and Flakes

The distinction is morphological: powders consist of roughly equiaxed or irregular particles, while flakes are thin, plate-like particles with a high aspect ratio (diameter-to-thickness). Carbonyl nickel and electrolytic nickel are typically powders; mechanically milled or rolled-and-fractured nickel produces flakes. Supplier technical data sheets specifying particle shape and aspect ratio are the most reliable classification support.

Battery technology — particularly nickel-metal hydride and nickel-rich lithium-ion cathode precursors — has become a major demand driver alongside traditional powder metallurgy (sintered parts, hard metals) and conductive ink or paste applications in electronics. Catalyst manufacturing for hydrogenation reactions also consumes significant volumes of fine nickel powder. The specific grade and purity required varies considerably across these sectors, which is why particle specifications on commercial documents matter for both classification and end-use compliance.