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

Photochemistry, industrial applications-photochemistry

industrial applications-photochemistry

How many types of breakdown are possible in dielectrics, The following thre...

The following three types of breakdown are possible in Dielectrics: (a) Electrothermal Breakdown - This is caused by the heat produced because of the dielectric loss which is

Pressure steam would be generated for the two cases, A gas-phase exothermic...

A gas-phase exothermic reaction is approved out in a multi-tube reactor with the catalyst in 1-inch. Tubes and boiling water in the jacket. The feed temperature and the jacket temp

Explain oxidation, Oxidation - Silicon has the unique ability to be oxidiz...

Oxidation - Silicon has the unique ability to be oxidized into silica, which produces a chemically stable, protective and insulating layer  on the surface of the wafer. The produc

Process control, A tank contains cold water at a temperature Tc = 20°C and ...

A tank contains cold water at a temperature Tc = 20°C and volume Vc = 1 m3. You add a volume Vh = 1 m3 of water at temperature Th = 100°C at time t = 0. Energy is lost from the tan

Volatile organic compound, The design of a monolith reactor for the VOCs re...

The design of a monolith reactor for the VOCs removal.(Benzene) Therefore, you are asked to do the following: 1. Choose a specific VOC; 2. Search for the reaction rate for

Determine the maximum gain of the system, Consider a heat-exchanger control...

Consider a heat-exchanger control loop with no dead time.  It is controlled by a PD controller.  The rate time is 0.25 min.  A real PD controller is used with filtering where a = 0

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