Differentiate crystalline and amorphous materials, Other Engineering

Assignment Help:

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.


Related Discussions:- Differentiate crystalline and amorphous materials

Enhancing finance revenue.., Enhancing finance revenue In Corporate Fin...

Enhancing finance revenue In Corporate Finance and Business financial is the area of financial that promotion with financial options of organizations. Its main objective is to

#title., problem on dissociation constant

problem on dissociation constant

Burners - aircraft engine , BURNERS :  ATOMISER BURNERS This ...

BURNERS :  ATOMISER BURNERS This type of burner presents the fuel in a finely atomised spray by forcing the fuel to pass through a small orifice. The size of the orifi

Restoration of clipped speech signal, Restoration of clipped speech signal ...

Restoration of clipped speech signal using linear prediction

Ic Packages, Ic Packages: Like transistors and other types of solid sta...

Ic Packages: Like transistors and other types of solid state components, IC's are mounted in packages, which protect them from moisture, dust and other types of contaminations.

Variable interest rate, What is Variable Interest Rate? Interest rates whic...

What is Variable Interest Rate? Interest rates which is offered by banks or financial institutions on loans or deposits which are liable to change according to circumstances. For e

Structures , how to find the equation for deflection of a cantilever beam s...

how to find the equation for deflection of a cantilever beam subjected to udl in terms of Airy''s stress function

Pitch control unit (pcu) operation - propellers, Pitch control unit (pcu) o...

Pitch control unit (pcu) operation: The action of the Governor bob weights, due to the varying RPM of the engine, is to raise or lower an internal piston to cover or open fluid

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