Magnetic material magnetic parameters of technology

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  Magnetic material into non-technical parameters of the magnetic structure sensitive parameters (ie, the amount

of the intrinsic magnetic 1), if the saturation magnetization M,, the Curie temperature of the 'like, and the structure

-sensitive magnetic parameters, such as remanence several Pat or B, and coercivity Hb or Nd, energy product

(BH)? like. The former mainly by the chemical composition and crystal structure to determine; latter addition to the

intrinsic parameters, but also the grain size, grain orientation, crystal defects, and other factors dopant.block magnets
           Saturation magnetization M "bubble and magnetization M, is extremely important magnetic material

magnetic parameters magnet material bucket require M better. Saturation magnetization of the magnetic material

depends on the composition of atoms, atomic magnetic moments and temperature. In the low temperature

region, which follows the Bloch (Bloch) Law.Magnetic Head Pulley
           Simple cubic, body-centered cubic and face-centered cubic crystal mouth values ??were 2,1 and 1/2. When

a time 0K, M, (T)-M, (O), M, (O) is an absolute saturation magnetization. At room temperature (293K) time, M, can

be expressed as M, = n. ff (per unit volume of magnetic atoms) where N is the number of atoms of the magnetic

lmol; 'is the density; A is the relative atomic mass; Lu B is the Bohr magneton; n. ff is the effective Bohr magneton

number. For 4f metals and alloys, n. H is approximately equal gJJ; For 3d metals and alloys, a few H is

approximately equal gJS. Experimental results show that, Fe, Co, Ni who were 2 16T, 1 79T and 0 61T. In the Fe

3d metal are highest. Fe is added to the matrix & when an increase with the increase in the content Cb, when the

mass fraction & up to 40%, the maximum people who = 24T. Save & beyond, all added elements are the Fe

reduced.magnetic name tags