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

Seekers , Seekers   There are two main types of sensor used in autono...

Seekers   There are two main types of sensor used in autonomous vehicles (seekers and position/attitude sensors) - although not all systems have both.            - Airc

Rated breaking torque, Consider a 3-hp, 220-V, 1800-r/min separately excite...

Consider a 3-hp, 220-V, 1800-r/min separately excited dcmotor controlled by a single-phase fully controlled rectifierwith an ac source voltage of 230Vat 60Hz.Assume that the full-l

Origin-destination matrix, (a)  Explain briefly any five roadway elements. ...

(a)  Explain briefly any five roadway elements. Include function and current practices used in the design of these elements. (b)  Discuss any three emerging (i.e. 'Intelligent T

Propeller construction, PROPELLER CONSTRUCTION METAL PROPELLERS Mo...

PROPELLER CONSTRUCTION METAL PROPELLERS Most metal propellers have forged alloy blades protected from corrosion by anodising and often further protected by polyurethane en

Aviation legislation - dealer’s certificate , DEALER'S CERTIFICATE Refere...

DEALER'S CERTIFICATE Reference: When the sale of an aircraft involves flight without a Certificate of Registration, The C.A.A. will permit the aircraft to fly under certain re

Refractory and their classification, Q. What are refractory's? How are they...

Q. What are refractory's? How are they classified? Give the essential requirements of good refractories.                                                    OR Discuss cla

Apu engine, APU Engine APU engines usually consist of a centrifugal com...

APU Engine APU engines usually consist of a centrifugal compressor and a radial turbine however, axial compressors and turbines may be added or used in their own right. Centrif

Hydraulics.., A pump delivers 40 lpm to a 100 mm bore/25 mm rod cylinder to...

A pump delivers 40 lpm to a 100 mm bore/25 mm rod cylinder to move a load of 22 kN. A throttle is introduced on the rod end, and return flow with a 10 lpm flow rate. A 70 bar press

Comparator, Comparator A comparator is a device, which compares two inp...

Comparator A comparator is a device, which compares two input voltages and indicates at the output, which of the two is the larger.  Basically, the circuits use a differential

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