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

Explain the fermi energy, Explain the Fermi energy The Fermi energy g...

Explain the Fermi energy The Fermi energy generally refers to the energy of the highest get quantum state in a system of fermions at absolute zero temperature.

Empirical correlation, The objective of the research is to empirically deve...

The objective of the research is to empirically develop correlations between convection heat transfer and these above mentioned non-dimensional in numbers. The simple empirical cor

Temperature of the shield, Two parallel planes 1.2x1.2 are splited by a dis...

Two parallel planes 1.2x1.2 are splited by a distance of 1.2 m. the emissivity's of the planes are 0.4 and 0.6, and the temperature are 760 and 300 oC, correspondingly. A 1.2x1.2 r

Applications of permanent magnets, Applications of permanent magnets  a...

Applications of permanent magnets  a - Applications based on attraction or repulsion forces  b - Applications based on Faraday's induction law c- Application based on Lor

What are the objectives of heat treatment of metals, What are the objective...

What are the objectives of heat treatment of metals? Objectives of heat treatment-  Cause relief of internal stresses developed while cold working, welding, casting, forgi

Hardness of water, Formulas for determining temporary and permanent hardnes...

Formulas for determining temporary and permanent hardness

Pipeline economics, payback period for gas distribution network system

payback period for gas distribution network system

#westron, #synthesis and uses of westron

#synthesis and uses of westron

Adsorption and membrane processes, Zeolites are used to adsorb a wide range...

Zeolites are used to adsorb a wide range of solutes from vapour and gas streams. What is it about their structure that makes them suitable for selective adsorption? What isotherm(s

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