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

Waste water treatment, Q. Waste Water Treatment? Typically, there are a...

Q. Waste Water Treatment? Typically, there are a number of waste water streams which need to be treated before disposal to land or water. Depending on the nature of contaminati

Determine the carbon content of steel, Determine the carbon content of stee...

Determine the carbon content of steel: A hypoeutetoid steel which was cooled slowly from γ-state to room temperature was found to contain 10% eutectoid ferrite. Suppose no cha

What are major cutting tools used for machining of metals, a) What are majo...

a) What are major kinds of cutting tools used for machining of metals? b) What important role the chip breakers play during machining of metals? c) Write four important requi

Show the types of changes in project, Q. Show the types of Changes in proje...

Q. Show the types of Changes in project? During the development and execution of a project, the following changes can occur:  Scope of work changes  Cost deviation

Mig / co2 welding, MIG / CO 2 WELDING In MIG / CO 2 welding the feed...

MIG / CO 2 WELDING In MIG / CO 2 welding the feeding of filler wire is machanised. If the welder moves the MIG / CO 2 torch the process is called semi automatic MIG / CO 2

Bolt Group Bending Moment, What is the Maximum bolt bending moment in a gro...

What is the Maximum bolt bending moment in a group for four equally spaced bolts?

What is coating thickness, Q. What is Coating Thickness? The dry thickn...

Q. What is Coating Thickness? The dry thickness of the coating shall be checked by using a "micro test" magnetic gauge or approved equal which has been properly calibrated, at

Structural steel materials, Q. Structural steel materials? All structur...

Q. Structural steel materials? All structural steel materials to conform to GS-904-0510. All miscellaneous steel materials to conform to GS-904-0515. All welding consumab

Closed, Closed, open and isolated system-Thermodynamics system: Sol: ...

Closed, open and isolated system-Thermodynamics system: Sol: In thermodynamics the system can be defined as the quantity of matter or region in space upon which attention is

Explain the single cast component auger, Explain the Single Cast Component ...

Explain the Single Cast Component Auger Material for Single Cast Component Auger: Either Ni-Cr or Cast iron Length of components: 1250 mm. Outer Diameter of Auger compone

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