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 are bulk defects, Bulk defects * Voids are little regions where th...

Bulk defects * Voids are little regions where there are no atoms, and can be thought of as clusters of vacancies. * Impurities can cluster jointly to form small regions of a

PROCESS CONTROL, HOW CAN I BE ABLE TO CONTROL AND BALANCE THE INPUT AND OUT...

HOW CAN I BE ABLE TO CONTROL AND BALANCE THE INPUT AND OUT-PUT

Explain positive and negative photo resist, Positive and Negative Photo res...

Positive and Negative Photo resist There are two types of photo resist: positive and negative. For positive resists, the resist is exposed with UV light where the underlying ma

Explain the fluidized catalytic cracking method, 1. What are chemical fuels...

1. What are chemical fuels? How they are classified?  List the characteristics of a good fuel. 2. Define cracking. Explain the fluidized catalytic cracking method with neat diag

Chemical bonding, Why protons doesn''t react which each other?

Why protons doesn''t react which each other?

introduction on physiological pharmacokinetics, Question : Give a basic in...

Question : Give a basic introduction on PHYSIOLOGICAL PHARMACOKINETICS ? Answer: The history and bases of physiological pharmacokinetics will be briefly reviewed, pointing out

Find the composition of product gas, Find the Composition of Product Gas ...

Find the Composition of Product Gas Methane reacts with 100 % excess oxygen to form formaldehyde and water. However, in an undesired side reaction, some of the methane is comb

iron-carbon alloy , It is desired to generate an iron-carbon alloy that ha...

It is desired to generate an iron-carbon alloy that has a minimum hardness of 200 HB and a minimum ductility of 35%RA. Is such an alloy possible? If so, what will be its compositio

Explain lattice energy, Explain lattice energy The lattice energy of...

Explain lattice energy The lattice energy of an ionic solid is calculates the strength of bonds in that ionic compound. It is given the symbol U and is equal to the amount o

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