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

Statics, Create resolving questions on comments of couples

Create resolving questions on comments of couples

Operations reseach techniques, how does operations reseach enable in reveal...

how does operations reseach enable in revealing new problems

Plaster molds, Plastic molds are made of plaster of Paris (gypsum) or calci...

Plastic molds are made of plaster of Paris (gypsum) or calcium sulphate, talc and silica flour is added in the plaster of Paris to improve strength and to control the time required

A/c question 1, Briefly describe a simple method of estimating summer outsi...

Briefly describe a simple method of estimating summer outside air conditions for the design calculations of an air conditioning scheme. If a more accurate assessment of heat gains

Controller requirements, Controller Requirements  The requirements for ...

Controller Requirements  The requirements for the stability and performance of fight control systems are specified in the certi-fication requirements for U.S. civilian aircraft

#tmjjlitle.., Industries that manufacture racing cars prefers nickel based ...

Industries that manufacture racing cars prefers nickel based alloys for engine components and iron based alloys for structural parts. Justify this statement.

Fire alarm systems, Fire alarm systems: All buildings require a means ...

Fire alarm systems: All buildings require a means by which the warning  of  fire  can  be  given  to  all occupants.  In the very smallest premises this might be achievable by

Financial management, which type of finanacing is appropriate to each firm

which type of finanacing is appropriate to each firm

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