Compositional defects, Other Engineering

Assignment Help:

Q. Explain the compositional defects.

Ans. Compositional Defect: This defect due to

(a)    Alloying an element to original crystal.

(b)   Impuring atom during original crystallization.

These defects are responsible for functioning of most semiconductor devices.

A substitutional impurity defect is also a point defect in which a foreign atoms that substitutes for a parent atom in the crystal lattice e.g. in bras, zinc is a substitutional atom in the copper.

A interstitial impurity is a small sized atom occupying space between the regularity positioned atoms.


Related Discussions:- Compositional defects

The integrator, Integrator This circuit performs the calculus operation...

Integrator This circuit performs the calculus operation of integration. An operational amplifier with negative feedback applied via a capacitor (instead of a resistor) will pe

Structural engineering, The closed form solutions for ?max and Mmax are giv...

The closed form solutions for ?max and Mmax are given on page 16.1-276 for several axial loads. Figure C-C2.2 summarizes the results for the first benchmark problem and Figure C-C2

Application to the axial flow compressor, APPLICATION TO THE AXIAL FLOW COM...

APPLICATION TO THE AXIAL FLOW COMPRESSOR: In order for the compressor to deliver a high mass airflow for a minimum effort required to drive it, it is important that all the com

Control surfaces , Control Surfaces  As with a flight control system...

Control Surfaces  As with a flight control system, a guidance algorithm uses control surfaces to control the behaviour of an airframe.         - Rudder, ailerons, elev

Function setxor and set function unique - set operations, Function setxor a...

Function setxor and set function unique: The function setxor receives two vectors as input arguments, and returns a vector having all the values from the two vectors which are

Aeroengines - fluent , Installing FLUENT on a MWS machine Fluent was origi...

Installing FLUENT on a MWS machine Fluent was originally developed on unix and graphical output was provided by calls to the X Windows graphics system For this reason provided by c

Cash flows, Your company is considering a machine that will cost $6,287 at ...

Your company is considering a machine that will cost $6,287 at Time 0 and which can be sold after 3 years for $790. To operate the machine, $886 must be invested at Time 0 in inven

Capital structure - case study, The following is the capital structure of X...

The following is the capital structure of X ltd on 31st Dec2003

Heat and mass transfer, 1. Air at 1 atm, 90F, and 8 ft/s enters a thin-wall...

1. Air at 1 atm, 90F, and 8 ft/s enters a thin-walled tube of 4-in diameter. The tube surface temperature is maintained at 60F. Air exits the tube at 70F. Determine the length of t

Blow hole and pin hole porosity, Blow Holes                    (i) Exc...

Blow Holes                    (i) Excessive moisture in the moulding sand.                   (ii) Low permeability and excessive fine grain sands.                   (iii

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