End centered tetragonal lattice in the bravis list, Other Engineering

Assignment Help:

Q. There is no end centered tetragonal lattice in the bravis list, but there is an end centered orthorhombic lattice. Explain why this is so?

Ans. A tetragonal system is defined by three mutually perpendicular vectors, just two of which are equivalent in magnitude. There is no face centered tetragonal space lattice. Any array o9f lattice points that can be represented by an FCT cell can equally well be described by a BCT cell.

   When there are two such alternatives of the same crystal system available to describe the same array of lattice points, the unit cell which has the smaller no. of lattice point is chosen for the bravais list. An orthorhombic cell is defined by three unequal but mutually perpendicular translation vectors. There are four orthorhombic space lattices.


Related Discussions:- End centered tetragonal lattice in the bravis list

Limiting travel distances - means of escape, Limiting travel distances - Me...

Limiting travel distances - Means of Escape: Some buildings, or parts of buildings, do not have alternative exits and do not have protected escape routes leading to a place of

Use of multicylinder engine, USE OF MULTICYLINDER ENGINE If, in a multi...

USE OF MULTICYLINDER ENGINE If, in a multi cylinder engine, power strokes are staggered, the limitation of flywheel can be overcome to a large extent. Torque diagram for 2 cyli

Mos ic-s, MOS IC-S: Not all IC's are constructed using bipolar componen...

MOS IC-S: Not all IC's are constructed using bipolar components, IC's are often designed to utilize either bipolar transistors or "Field-Effect transistors" (FETS).  The Field

Process Control, Specify the inner-loop gain such that the damping coeffici...

Specify the inner-loop gain such that the damping coefficient of the closed loop is equal to 0.4

MBA Financial management, Need urgent help with Financial Management homewo...

Need urgent help with Financial Management homework assignment - evaluating company "Billabong". Due Fri 8 June (Sydney, australia time).

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