Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Differentiate crystalline and amorphous materials?
(a)Crystalline solids: Those solids in which the, ions atoms or molecules in a definite regular repeated three dimensional pattern are called solids. Thus the atoms or molecules in crystalline solid are arranged just as the sliders do on the parade ground.
e.g.Calcite, rock-salt, quartz, sugar-mica, diamond etc.
(b)Amorphous solids: Those solids in which the constituent atoms or molecules are not arranged in a definite pattern, repeating in three dimensions are called amorphous solid or materials.
e.g.plastic, glass etc.
Crystalline materials
Amorphous materials
(a) The constituent's ions or molecules in a given crystalline solid are arranged in a definite geometrical pattern.
The constituent's atoms or molecules in these solids are not arranged in a regular definite geometrical pattern.
(b) These have a definite external geometrical shape.
These are not regular in their external shape.
(c) These have a long range order of atoms or molecules.
These do not have a long range order of atoms or molecules.
(d) All the bonds among molecules in these solids are equally strong. The crystalline solids have a sharp melting point.
Amorphous solid do not have a sharp melting point, because the weakest bond get reputed at lower temperature and stronger bonds get reputed at higher temperature.
(e) These are anisotropic i.e. the bond of crystalline solids have directional properties.
These solids sre isotropic as their physical properties are same in all direction.
In crystalline solids the angles between the flat surfaces of the crystal are constant.
These are super cooled liquid of high viscosity.
Numerical solutions to equations: Many practical problems in engineering involve complex boundary conditions and variable properties that cannot be solved analytically, creat
clippers
Noise reduction The problem of engine noise has always been associated with aircraft. Increases in engine power have given rise to increases in noise and the indications are t
can we construct a body area sensor network in matlab as in ns-2.
Effects of Temperature and Altitude. Cold and/or Low On cold days the air density will increase. If the engine has a ‘part throttle rating' and the throttle is advanced to
the nature and importance of the efficient market hypothesis and comment on the implications for managers and investors?
why is only 1 lime and sod required for aluminium impurities
Expertsmind.com brings you unique solution in electrical engineering Define terms of Galaxy Clusters, Basic Astronomical Objects, Astronomical Distance Units, Terms
Question 1 Write a long note on Professional Cultures in a ‘Golden Age' Question 2 Write a long note on the Global and Local Interrelationship Question 3 Write a long no
can i get a drawing for any commertial puilding
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd