Refractoriness, Mechanical Engineering

Assignment Help:

Refractoriness

The capability of a material to withstand the action of heat devoid of appreciable deformation of softening is submitted to as refractoriness. Such property is measured as temperature at that the refractory material softens or fuses beneath several load.

The refractory are those materials that can withstand the action of hot environment, both gaseous and liquid. The industries engaged in manufacturing of chemicals, ceramics, metals and glass depend heavily on utilizing refractory materials. Most refractory materials are ceramics. Such are made up of high-melting oxides of Zr, Mg, Al, Ca and Si. There might be other elements represent as impurities. The present enhancement in high temperature applications has initiated crystalline oxides, sulfides, carbides and borides. That type of materials is sometimes combined along with metals to produce cermets that have better shock resistance than pure carbide or oxide refractories. The cermets are utilized in gas turbines, missiles, nuclear reactors, ran jet engines etc.

 

 


Related Discussions:- Refractoriness

Explain working of nozzles, Q. Explain working of Nozzles? Nozzles supp...

Q. Explain working of Nozzles? Nozzles supporting agitators, pumps, or other mechanical equipment, shall be suitably reinforced to withstand the mechanical loadings, specified

Calculate the maximum shear stress, The square cross sections A and B a...

The square cross sections A and B are shown in Fig Q1, the dimensions b = 80 mm, thickness t = 10 mm. A shear force V is applied at the cross section, calculate the maximum she

Find stress intensity factor - thick cylinder, Find stress intensity factor...

Find stress intensity factor - thick cylinder: A thick cylinder of r i = 10 mm, r 0 = 70 mm carried equal and symmetric radial cracks 6 mm long on opposite sides of inner su

Two stroke and four stroke engines, T w o Stroke and Four Stroke Engines:...

T w o Stroke and Four Stroke Engines: In  the two stroke engines thermodynamic cycle is completed in One revolution of crank shaft whereas in 4 stroke engines the cycle is c

Simple mechanism, differentiate between kinematic chain and mechanisms

differentiate between kinematic chain and mechanisms

Head loss, calculate the head required

calculate the head required

What are the advantages and disadvantages of induction motor, What are the ...

What are the advantages and disadvantages of induction motors? A coil of 500 turns is linked by a ?ux of 0.4 mWb. If the ?ux is reversed in 0.01 second, ?nd the e.m.f induced i

Principle stresses, Determine the bending  (o-, ) and shear stress ( Tx), )...

Determine the bending  (o-, ) and shear stress ( Tx), ) at the surface element shown on the solid circular shaft below. Use Mohr's circle to determine the principle stresses, a l

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