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

What is metallisation, What is Metallisation Metallisation :  metalizi...

What is Metallisation Metallisation :  metalizing is the procedure of evaporating a film of metal onto products. Normally the same is done in vacuum, therefore called vacuum m

Flash tank, a mixture of propane (125 lbmole, K = 2.056), n-butane (200 lbm...

a mixture of propane (125 lbmole, K = 2.056), n-butane (200 lbmole, K = 0.925), and n-pentane (175 lbmole, K=0.520), is at 200 psia and 200 F. determine the phase of the mixture?

Axon, Ask queswhat is axontion #Minimum 100 words accepted#

Ask queswhat is axontion #Minimum 100 words accepted#

Problems of flooding and channeling and mass transfer, 1. Mass transfer coe...

1. Mass transfer coefficients can be of either local or overall type. a. Explain carefully what the local and overall mass transfer coefficients represent. b. How does the co

Properties of filament and contact materials, Properties of filament and co...

Properties of filament and contact materials. The Filament materials must have low resistance temperature co-efficient, high melting point, high mechanical strength, ductility

Calculate excess air used to burn the sulphur, A contact sulphuric acid pla...

A contact sulphuric acid plant burns pure sulphur with air. The products of combustion pass to a converter where some of the SO 2 is converted to SO 3 at a fast rate owing to the

Simulation of RDC using Matlab, I need help in developing a program in matl...

I need help in developing a program in matlab that can simulate a reactive distillation column. I have all the required model equations needed for the simulation. pls contact me as

Liquid holdup, can anyone tell me something about this term

can anyone tell me something about this term

Outdoor facilities-features of a laboratory, Outdoor facilities, if any ...

Outdoor facilities, if any For biology lab there may be an animal house, green house, garden plots, aquarium, a vivarium etc. Also find out how they are connected with the main

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