Mu Metal Vs Ferrite Sheet

Mumetal nickel permalloy sheet for magnetic field shielding 0 2t 30 90cm.

Mu metal vs ferrite sheet.

The difference in properties and performance of ferrites as compared with most other magnetic materials is due to the fact that the ferrites are oxide materials rather than metals. The treatment of a metal alloy or other material by heating to a predetermined temperature holding for a certain time and then cooling to room temperature. Mpp kool mu ferrite bsat t perm power loss w kg permeability turns 1 56 250 80 50 1 1 0 1 4 75 680 50 1 8 75 125 65 50 1 1 1 1 125 140 50 1 1 35 gap dependen t 65 25 2 1 assumptions based on 50 permeability with 50 oe of bias 2500 perm ferrite was used for comparison core loss comparison at 100 khz and 1 kg bac. Mumetal doesn t block as much field strength as regular steel.

The ratio is expressed as the field strength at a given point vs. At 0 002 t cobalt iron high permeability strip material 2 3 10 2. The resulting field strength at the. The first is permeability.

In this particular case steel is usually the better choice. Anything below 0 020 thick is difficult to weld other than with spot welding. 4000 failed verification at 0 002 t ferritic stainless steel annealed 1 26 10 3 2 26 10 3. Ferrite magnet 300g.

Our mu metal items on ebay. 2 5 10 2. Mumetal magnetic shielding alloy mu metal grade astm a753 alloy 4 uns n14080 80nife is our most widely known brand. Mumetal chemical composition in weight nickel ni 80 82 molybdenum mo 3 5 6.

For pefect shielding of magnetic field of neodymium magnet use 10 layers of our 0 35mm thickness mumetal. 5 0 10 3. Although mu metal comes in various thicknesses it is a rather soft material and may prove to be difficult to work with if it is too thin. Mu metal is a nickel iron soft ferromagnetic alloy with very high permeability which is used for shielding sensitive electronic equipment against static or low frequency magnetic fields it has several compositions.

Magnetic capabilities and mechanical properties of mu metal. You want to see a weaker magnetic field on the far side of the metal. 6 3 10 2. A ratio used to measure the effectiveness of a given shield.

You should keep that in mind making your selection. One such composition is approximately 77 nickel 16 iron 5 copper and 2 chromium or molybdenum. For example let s say you place a sheet of metal right next to a neodymium magnet. Mu metal is a unoriented nickel iron soft ferromagnetic alloy with very high permeability suitable for sensitive electronic equipment shielding.