Alnico Horseshoe Magnet and Paper Clips
Alnico is an acronym referring to alloys which are composed primarily of aluminium (symbol Al), nickel (symbol Ni) and cobalt (symbol Co), hence al-ni-co, with the addition of iron, copper, and sometimes titanium. The primary use of alnico alloys is magnet applications. Alnico alloys make strong permanent magnets, and can be magnetized to produce strong magnetic fields. Of the more commonly available magnets, only rare-earth magnets such as neodymium and samarium-cobalt are stronger. Alnico magnets produce magnetic field strength at their poles as high as 1500 gauss ( tesla), or about 3000 times the strength of Earth's magnetic field. Some types of alnico are isotropic and can be efficiently magnetized in any direction. Other types, such as alnico 5 and alnico 8, are anisotropic, with each having a preferred direction of magnetization, or orientation. Anisotropic alloys generally have greater magnetic capacity in a preferred orientation than isotropic types. Alnico remanence (Br) may exceed 12,000 G ( T), its coercion force (Hc) can be up to 1000 oersted (80 kA/m), its energy product ((BH)max) can be up to MG·Oe (44 T·A/m)—this means alnico can produce high magnetic flux in closed magnetic circuit, but has relatively small resistance against demagnetization.
Size: 4835px × 3503px
Photo credit: © Phil Degginger / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: alnico, aluminum, clips, cobalt, ferrous, fields, force, horseshoe, iron, magnet, magnetism, nickel, paper, permanent, physics
