Metal matrix composite

A metal matrix composite (MMC) is composite material with at least two constituent parts, one being a metal. The other material may be a different metal or another material, such as a ceramic or organic compound. When at least three materials are present, it is called a hybrid composite. An MMC is complementary to a cermet.Contents
1 Composition
1.1 Matrix
1.2 Reinforcement
2 Manufacturing and forming methods
3 Applications
4 See also
5 References
6 External links



Composition

MMCs are made by ....etc

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Definition

In order to conserve natural resources and economize energy, weight reduction has been the main focus of automobile manufacturers in the present scenario. Weight reduction can be achieved primarily by the introduction of better material, design optimization and better manufacturing processes. The suspension leaf spring is one of the potential items for weight reduction in automobiles as it accounts for 10% - 20% of the unsprung weight. This achieves the vehicle with more fuel efficiency and improved riding qualities.

The intro ....etc

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Fun with Conductors and Insulators


Will an insulator make a light bulb light? Why or why not?

No, because it does not conduct electricity. It protects the wires
....etc

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Aluminium(Al) ,Copper(Cu) and Magnesium(Mg) alloys can be combined with Silicon carbide(SiC),alumina(Al2O3),boron carbide(B4C),graphite(Gr)and other particulate fiber or whiskers reinforcements to significantly increase stiffness or improve the thermophysical properties of components.The application arena for for metal matrix composites is continually expanding as the cost effectiveness mature.Using various properties of metal matrix composites,they can be widely applied in the following fields.
1.Space
2.Commercial
3.Marine
4. ....etc

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INSULATORS



HISTORY


Early history centers around what today we would consider very low DC voltages
Basically grew out of the needs of the telegraph industry – starting in the late 1700s, early 1800s

Glass plates used to insulate telegraph line

Gradually technical needs increased as AC voltages grew with the development of the electric power industry


DIELECTRIC STRENGTH


The dielectric strength of an insulating material is def ....etc

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Introduction

An electric circuit is a path along which
current flows.

Current can only flow through a closed circuit.

Battery provides energy in a closed circuit
and current transports energy from the
battery to the bulb ....etc

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Deterioration of reinforced concrete structures due to corrosion of steel is a cause of global concern. The losses due to corrosion every year run into millions of rupees and any solution to this universal problem of corrosion has a direct bearing economy of the country. It is estimated that about 30-40 percent of steel produced each year is used to replace corroded material.
In recent years, the construction industry has seen an increased demand to reinstate, rejuvenate, strengthen and upgrade existing concrete structures. This may be attrib ....etc

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i want to download a seminar rport on types of insulators used in long transmission lines ....etc

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i am roshni.i want a report on topological insulators. ....etc

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