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ALUMINUM NICKEL COBALT MAGNETS
The Alnico (Aluminum, Nickel, Cobalt) family was introduced in the 1930's. It's characterized by excellent temperature stability, high residual induction, and relatively high energies. These were the first materials specifically designed for permanent magnets to be used in meters and instruments commercially.
These metallic permanent magnets are based on AlNiCo alloys. Depending on material composition (apart from aluminum (Al), nickel (Ni), cobalt (Co) also iron (Fe), copper (Cu) and titanium (Ti)) and production process, isotropic and anisotropic magnets can be manufactured with different magnetic properties.
Alnico is available in both cast and sintered forms. Sintered Alnico offer slightly lower magnetic properties but better mechanical characteristics than cast Alnico. These materials are brittle, hard and cannot effectively be machined by conventional techniques other than by grinding.
The Alnico (Aluminum, Nickel, Cobalt) family was introduced in the 1930's. It's characterized by excellent temperature stability, high residual induction, and relatively high energies. These were the first materials specifically designed for permanent magnets to be used in meters and instruments commercially.
These metallic permanent magnets are based on AlNiCo alloys. Depending on material composition (apart from aluminum (Al), nickel (Ni), cobalt (Co) also iron (Fe), copper (Cu) and titanium (Ti)) and production process, isotropic and anisotropic magnets can be manufactured with different magnetic properties.
Alnico is available in both cast and sintered forms. Sintered Alnico offer slightly lower magnetic properties but better mechanical characteristics than cast Alnico. These materials are brittle, hard and cannot effectively be machined by conventional techniques other than by grinding.
