End centered tetragonal lattice in the bravis list, Other Engineering

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.

Posted Date: 8/1/2012 8:59:05 AM | Location : United States







Related Discussions:- End centered tetragonal lattice in the bravis list, Assignment Help, Ask Question on End centered tetragonal lattice in the bravis list, Get Answer, Expert's Help, End centered tetragonal lattice in the bravis list Discussions

Write discussion on End centered tetragonal lattice in the bravis list
Your posts are moderated
Related Questions
Evacuation of a high rise building - means of escape: Evacuation of a high rise building is likely to be split into two or more phases.  Initially, when the alarm activates (f

Differentiator: With negative feedback applied through a resistor and the input signal through a capacitor, the circuit will perform the mathematical operation of differentiati

What is Treasury Bills? Treasury expenses are one of the finance devices in temporary money market. It is unprotected promissory observe from the govt part of the RBI to satisfy

Thermoelectric effect The measurement of temperature using a thermocouple relies on Seebeck effect. The electrons occupy different energy levels in different materials

Principal of Assembly buildings- fire protection engineering: As assembly buildings accommodate members of the public they often accommodate people with disabilities. People


FIRING ORDER If in multi cylinder engines, various cylinders are made to fire one after the other, interference between adjacent cylinders would occur, since these may have o

Hot Section Inspections (HSI's) The hot section includes all components in the combustion and turbine sections of the engine. Scheduled inspections may involve visual inspectio

Aviation legislation - MAXIMUM TAKE-OFF MASS: Aircraft companies intending to manufacture a new design must have approval under Chapter A8-1 of BCAR or JAR-21 (Certification Pr

Comparison of  fp result with other metods Comparisons of FP results with results from other computational methods for inviscid flows are given. The FP results have been obtain