Explain in detail about the b-h hysteresis curve, Chemistry

Assignment Help:

How does B-H hysteresis curve be understood in terms of domain growth and domain rotation?

There are two possible ways to align a random domain structure by applying an electric field. One is to rotate a domain in the direction of field and other is to allow the growth of the favourably oriented domains at the expense of less favourably oriented ones. If domain  structure  is  compared  with  grain  structure  of  a  polycrystalline  material,  boundaries  separating  the  domains  known as called  domains  walls  are  analogue  of  grain boundaries. Domain boundary energy is about 0.0002 J/m2. Domain walls however are  some  two  orders  of  magnitude  thicker  than  grain  boundaries,  since there  is  a gradual transition from one domain orientation to next across the wall. Additionally domain boundaries can exist within the grain. Analogous to grain growth, domain walls can move such  that  more  favourably  oriented  domains  grow at  expense  of  others.  In earlier stages of magnetization below the saturation region of hysteresis curve, domain growth is dominant.  Growth  is  more  or  less  complete  as  the  saturation  region  is  approached.

 


Related Discussions:- Explain in detail about the b-h hysteresis curve

Explain hybrid rocket propellants, Explain the following and give one examp...

Explain the following and give one example of each: a. Tranquillizers b. Mordant c. Hybrid rocket propellants

Titrations, hi I''m doing an assignment and one question has came up saying...

hi I''m doing an assignment and one question has came up saying describe 3 different titrations that are not volumetric, I''ve been searching since yesterday but still have no clue

Law of milliequivalents, An excess of NaOH solution was added to 100 ml of ...

An excess of NaOH solution was added to 100 ml of a ferric chloride solution. This caused the precipitation of 1.425 gram of Fe(OH)3 . calculate the normality of ferric chloride so

Qualitative analysis, why do we add HCl in common ion effect of II froup

why do we add HCl in common ion effect of II froup

.basic concepts of chemistry, calculate M of 3m solution of NaCl of densit...

calculate M of 3m solution of NaCl of density of 1.05 gm/ml

Freons, Which is a better coolant, Freon 11 or Freon 12? why?

Which is a better coolant, Freon 11 or Freon 12? why?

Phenol or carbolic acid - hydrocarbon, Phenol (Carbolic acid), C 6 H 5 OH o...

Phenol (Carbolic acid), C 6 H 5 OH or Hydroxy benzene It was observed by Runge in the middle oil fraction of coal-tar distillation and termed it 'carbolic acid' (carbo = coal, o

Energy change and change of state, On a hot summer day in July, Jennifer is...

On a hot summer day in July, Jennifer is trying to make Popsicles.  If she is using 20.6 g of fruit juice how much heat is released when the Popsicle changes from liquid to solid a

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