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

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

Find out the centroid of the shaded area: Find out the centroid of the shaded area illustrated in Figure (a). Solution The shaded area A may be considered as the

Qualifications of welding procedures, Q. Qualifications of Welding Procedur...

Q. Qualifications of Welding Procedures? The Fabricator shall prepare and submit for review by Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR),

What will happen if air filter is not used?, (a) What will happen if air fi...

(a) What will happen if air filter is not used? (b) What are the components of an air filter? (c) What precautions should be followed while cleaning the air filter? (d) What grade

Illustrate construction of hydraulic dynamometer, Illustrate working and co...

Illustrate working and construction of Hydraulic Dynamometer ? Determine Power transmitted.

Laser beam welding, LASER BEAM WELDING In this process, fusion is ac...

LASER BEAM WELDING In this process, fusion is achieved by directing a highly concentrated beam to a fine spot. The word LASER  is an abbreviation of Light Amplification by S

Heat loss in acylindrical pipe, Ask question #Minimum 1. Research the topic...

Ask question #Minimum 1. Research the topic of heat loss in a cylindrical pipe. Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the f

Use of high temperature material flare tips, Q. Use of high temperature mat...

Q. Use of high temperature material Flare Tips? A variety of high temperature alloys (typically stainless steels and/or nickel-base alloys) are employed in the construction of

Explain degree of freedom - jig and fixture, Explain Degree of Freedom - Ji...

Explain Degree of Freedom - Jig and Fixture The complete location of components inside a jig or fixtures can be understood with the help of figure. The work piece is a

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