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

Compare rankine cycle with carnot cycle - thermodynamics, Compare Rankine c...

Compare Rankine cycle with Carnot cycle: Sol.: Rankine cycle without superheat: 1 - A - 2 - 3 - 4 - 1. Rankine cycle with superheat : 1 - A - 2 - 2′ -3′ - 4 - 1.

What do you mean by weld and hold time, Q. What do you mean by Weld and hol...

Q. What do you mean by Weld and hold time? Weld time During this period the welding current flows through the circuit, i.e., it enters from one electrode, passes through t

CENTRE OF GRAVITY OF WIRE, WHATIS CG OF A WIRE BENT IN THE FORM OF A QUARTE...

WHATIS CG OF A WIRE BENT IN THE FORM OF A QUARTER ELLIPSE

How can you implement chemically coated sand, Q. How can you implement chem...

Q. How can you implement chemically coated sand? Chemically coated sand : Clean silica grains are sometimes coated with a non thermosetting hydrocarbon resin, which acts as a

Turnning fixtures, What are the forces coming on workpiece during turning a...

What are the forces coming on workpiece during turning and how workpiece should be clamp?

Tools and equipment , In Tools and equipment we studied about the various t...

In Tools and equipment we studied about the various tools and equipment used in service and repair of a motorcycle and for the troubleshooting. Acquainting with these will help you

Define pressure- retaining components, Q. Define Pressure- retaining compon...

Q. Define Pressure- retaining components? Components acting as pressure envelope or boundary; breach of this envelope or boundary would lead to loss of containment and discharg

Trippaing, how thw trippaning process work

how thw trippaning process work

Form tool, detals of type of form tool?

detals of type of form tool?

Thyristor fundamentals of electricity , Thyristor: The thyristor is just l...

Thyristor: The thyristor is just like an ordinary diode. Thyristor

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