Classes of magnetic materials: alnico, Physics

Assignment Help:

Alnico is a family of alloys containing metals Fe, Co and Ni plus small amount of Al and copper. These alloys are directionally solidified and subsequently given a heat treatment to in a magnetic field that increases the desired properties. The heat treatment at 800 degree centigrade results in a phase separation into two phases at different composition with different amount of magnetisation. The phase with a large magnetisation precipitates as very fine elongated particles embedded in a matrix of the other phase. It is hard to change the direction of the magnetic moments in these fine elongated particles.

APPLICATIONS: Alnico magnets finds applications in loudspeakers, microwave devices, motors, generators, meters, magnetos, separators, communication devices and welding machines.

 


Related Discussions:- Classes of magnetic materials: alnico

Define elastic fatigue, It is the need of elastic strength of a substance w...

It is the need of elastic strength of a substance when subjected to repeated stresses and strain. If the substance is reserved undisturbed for some time, the previous properties ar

How a conductive wire resist current in it?, Due to drift velocity of elect...

Due to drift velocity of electrons and due to collision of electrons

Determine the x and y coordinates - vertical circle, A 0.500 kg stone attac...

A 0.500 kg stone attached to the end of a string is whirled in a vertical circle of radius 1,20 meters. The center of the vertical circle is 1.50 meters above the ground. When the

Graphically show the intensity distribution, A monochromatic parallel beam ...

A monochromatic parallel beam of light is incident on a single slit. Graphically show the intensity distribution among the secondary maxima and principle maxima in diffracted beam.

Calculate the entropy, 1. Sodium dodecyl sulfate is a detergent with a cha...

1. Sodium dodecyl sulfate is a detergent with a charged hydrophilic sulfate head group and a 12 carbon hydrocarbon tail.  In solid form it exists as a monomeric molecule but upon

What will be effect on newtons rings, What will be effect on Newton's rings...

What will be effect on Newton's rings if: (a) A little oil (μ=1.65) is introduced between the lens (μ=1.5) and the glass plate (μ=1.75) (b) A plane mirror is placed instead o

Length contraction (relativity of length), Length contraction (relativity o...

Length contraction (relativity of length) is the length of a body moving with a relativistic velocity v = c relative to an observer is contracted by a factor in the direction of m

What is density, What is density? Density is a physical characteristic...

What is density? Density is a physical characteristic, and calculates of mass per unit of volume of a material or substance. It is a measurement of the quantity of matter in a

Explain semi conductors, Semi conductors: Semi conductors are these sub...

Semi conductors: Semi conductors are these substances which lie among conductor and insulators. Semi conductor is those substances which hardly pass electric current by them

What is the magnitude of the horizontal force, A man pushes a couch a dista...

A man pushes a couch a distance of 0.75 m. If 113 J of work is done. what is the magnitude of the horizontal force applied?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd