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

Determine the maximum shear stress, Determine the maximum shear stress: ...

Determine the maximum shear stress: A beam of triangular cross section of base width 120 mm & height 80 mm is subjected to a shear stress force of 3 kN. Determine the maximum

Define heat for electrical resistance welding, Q. Define Heat for electrica...

Q. Define Heat for electrical resistance welding? The heat, H for electrical resistance welding is generated by passing a large electrical current ( of the order of 3000 to 100

Strength of material, how will you apply principle of superposition in a st...

how will you apply principle of superposition in a stepped bar?

Tg curves of caco3, how much of mass lost in between 600-900 c

how much of mass lost in between 600-900 c

Entropy, Change in entropy for reversible

Change in entropy for reversible

Turbine, what do you mean by compounding of turbine?explain pressure-veloci...

what do you mean by compounding of turbine?explain pressure-velocity compounding with neat sketch.

Find kinematic viscosity, A pump is used to deliver discharge of 0.05 ...

A pump is used to deliver discharge of 0.05 m 3 /s from a river to a storage reservoir. The system consists of 500 m of 0.15 m cast iron pipe with a 90 o bend with a rad

Polymerization, Polymerization Whether similar molecules join in long ...

Polymerization Whether similar molecules join in long chain is termed as polymerization and resulting outcome is a polymer in a chemical reaction. Each plastic are polymers. T

Calculate the moment of inertia , Calculate the centroid (use point A as th...

Calculate the centroid (use point A as the reference) and the moment of inertia of the shape shown in Figure. The dimensions are given in centimeters.  Calculate the moment

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