Ceramics, Mechanical Engineering

Assignment Help:

Ceramics

Ceramics are mostly inorganic crystalline materials characterized by high melting point and low ductility. Such materials are processed via methods other than melting.

Ceramics consist of nonmetallic and metallic elements that are bonded together with ionic and or covalent bonds. They are usually produced via powder compacting and sintering at high temperatures.

General ceramic materials are hard and brittle along with very little ductility and toughness. Their inability to deform plastically is mainly because of directional ionic and or covalent bonds that leave no free electrons. Because of several reasons the ceramics are bad conductors of heat and electricity. Their engineering application makes employ of electrical and thermal insulating properties. The stability of inherent chemical and strong bonding also make ceramic quite able of surviving in hostile environment. High temperature application is individual situation.

Clay, silica as flint and feldspar form the basic ingredients of traditional ceramics. Major constituents of clay are hydrated aluminium silicate as Al2O3, SiO2, H2O. Minute amounts of other oxides as like: those of Ti, Mg, Fe, Ca, Na and K are present also. Whilst SiO2 provides stability against high temperature feldspar, as K2O, Al2O3, 6SiO2 generates glass bond among of refractory components. Traditional ceramics are usually utilized in form of tiles and bricks for construction or like electrical porcelain for electrical insulators. In its latter form this material is highly standardized for large variations and electrical industry are available. Still another class of ceramics called as engineering ceramics typically are made up of pure compounds like aluminium oxide or Al2O3, silicon carbide or SiC and silicon nitride or Si3N4. These engineering ceramics are utilized for high temperature applications.

 


Related Discussions:- Ceramics

Find out the centroid of the shaded area, Find out the centroid of the shad...

Find out the centroid of the shaded : Find out the centroid of the shaded area shown in Figure Solution Net area of shaded portion of Figure = The area of full

Determine the compressor work, (a) A four cylinder engine operates at 1200 ...

(a) A four cylinder engine operates at 1200 rpm gave 18.6 KW brake power, the average torque when one cylinder was cut-off was 105 N-m. Evaluate the indicated thermal efficiency if

Various properties of lubricant , Various Properties of Lubricant Vi...

Various Properties of Lubricant Viscosity: The property of lubricant which is a measurement of the internal friction of lubricating oil is called its viscosity. The vi

Opresion reserch, ppt of appling queuing model in railwy reservation

ppt of appling queuing model in railwy reservation

Corrosion assessment for water disposal system, Q. Corrosion Assessment for...

Q. Corrosion Assessment for Water Disposal System? Due to the high salt contents and oxygen contamination, disposal water is highly corrosive to CS material. HCL line and in

Insulatlon application information, The Contractor shall perform all work w...

The Contractor shall perform all work with the highest quality workmanship throughout to provide a neat, uniform appearance with no sharp edges exposed. Insulation shall not be

Hartung governer., #quesThe spring controlled governor of the “Hartung” typ...

#quesThe spring controlled governor of the “Hartung” type has two rotating masses each of 3.5 kg and the limits of their radius of rotation are 100 mm and 125 mm. The each mass is

Classify the two wheeler engines, (a) Classify the two wheeler engines. ...

(a) Classify the two wheeler engines. (b) Define the following components and their uses in engine with the help of engine diagram. (i) Crankcase (ii) Piston and Piston pi

FEED WATER PUMP, #what is the ratio between thirst pr. and discharge pr.? ....

#what is the ratio between thirst pr. and discharge pr.? ..

Theory of machines, What'' is balancing and vibration in machines Need of ...

What'' is balancing and vibration in machines Need of balancing? Causes of vibration and their harmful effects and remedies?

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