Explain planar defects, Chemical Engineering

Assignment Help:

Planar defects

* Grain boundaries occur where the crystallographic direction of the lattice abruptly changes. This usually happens when two crystals start growing separately and then meet.

* Anti phase boundaries happen in ordered alloys: in this case, the crystallographic direction remains the same, every side of the boundary has an  opposite phase: For example if the ordering is usually ABABABAB, an anti phase boundary takes the form of ABABBABA.

 


Related Discussions:- Explain planar defects

Bakelite, Bakelite is a material based on the thermosetting phenol formald...

Bakelite is a material based on the thermosetting phenol formaldehyde resin. Produced by the reaction under heat and pressure of phenol (a toxic, colourless crystalline solid) and

Introduction-design and organisation of laboratory store, INTRODUCTION : Y...

INTRODUCTION : You have studied of LT-1 course that storage is usually a necessity in most scientific establishments. You know that sufficient and appropriate storage space should

Electron configuration, What is wrong with each of the following attempts t...

What is wrong with each of the following attempts to write an electron configuration? Justify your answer with suitable explanation. (a) 1s22s3 (b) 1s22s22p23s2 (c) 1s22s23s2 (d) 1

Look, when do the cell get alot of thing in there thing because am confuse ...

when do the cell get alot of thing in there thing because am confuse cause is alot of thing becaus is crazy

ASSIGHMENT, how nickel is incearing the toughness of steel?

how nickel is incearing the toughness of steel?

Derive the ultimate primary controller gain, Consider the cascade loop as s...

Consider the cascade loop as shown below: i)   Specify the inner-loop gain such that the damping coefficient of the closed loop is equal to 0.4 ii)  Derive the ultimate

Flash point, Flash point: Flash point is lowest temperature at which the l...

Flash point: Flash point is lowest temperature at which the lubricant oil gives off enough vapours that is ignited for a moment. Significance: 1.      Flash point and fir

Iron phase chemical analyses, Dear sir I need chemical analysis method for...

Dear sir I need chemical analysis method for pyrite phase in iron ore

Important properties of permanent magnetic material, What are the most imp...

What are the most important  properties of permanent magnetic materials? Explain.  The most important properties of permanent magnetic materials are  (i) Remanence (Residu

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