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

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

Permeability, Permeability: The rate of diffusion of molten solid liquid a...

Permeability: The rate of diffusion of molten solid liquid and gases through refractories is called permeability. Low permeability is usually more important than low porosity from

Explain hard-baking, Hard-Baking Hard-baking is the final step in the p...

Hard-Baking Hard-baking is the final step in the photolithographic process. This step is essential in order to harden the photoresist and better adhesion of the photoresist to

Asad, hello, i am asad, frome bd. i need help..........

hello, i am asad, frome bd. i need help..........

Petroleum fluid properties, a wet gas is produced through a two -stage sepe...

a wet gas is produced through a two -stage seperator system. the 555 psia -89degree fahrenheit separator produces 170,516 scf/stb, and the 70 degree farenheith stock tank produces

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

Formulas for determining temporary and permanent hardness

Hall effect can be used to measure, Hall effect can be used to measure ...

Hall effect can be used to measure (A)  Mobility of semiconductors.  (B)  Conductivity of semiconductors. (C)  Resistivity of semiconductors.

Linear programming, fing the neceessary and sufficient conditions for the n...

fing the neceessary and sufficient conditions for the numbers s and t to make the LP problem maximise z=x+y subject to:sx+ty x;y>0 have an optimal solution be feasible b

Calculation of empirical and molecular formula, An organic compound is foun...

An organic compound is found to contain 37.5% of C, 3.2% of H and 59.3% of F. The following pressure and volume data were obtained for 1.0g of this substance at 90 degrees celsius

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