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Composites:: L 8. Material Science by Vijay Suthar Date:31/1/2013 (6 To 7 P.M.)

Composite materials are made of two or more dissimilar materials that are combined but remain separate and distinct. Composites differ from alloys, where the materials dissolve into each other forming a homogeneous solid solution. Composites can be classified in several ways, including by their formation process (natural vs manmade), construction pattern, and reinforcement method. They consist of a matrix phase that surrounds and binds together a dispersed reinforcing phase, giving composites properties dependent on the characteristics of each phase and how they interact. Common composites include fiber-reinforced plastics, concrete, and wood.

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76 views2 pages

Composites:: L 8. Material Science by Vijay Suthar Date:31/1/2013 (6 To 7 P.M.)

Composite materials are made of two or more dissimilar materials that are combined but remain separate and distinct. Composites differ from alloys, where the materials dissolve into each other forming a homogeneous solid solution. Composites can be classified in several ways, including by their formation process (natural vs manmade), construction pattern, and reinforcement method. They consist of a matrix phase that surrounds and binds together a dispersed reinforcing phase, giving composites properties dependent on the characteristics of each phase and how they interact. Common composites include fiber-reinforced plastics, concrete, and wood.

Uploaded by

TuhinVaria
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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L8.MaterialSciencebyVijaySutharDate:31/1/2013(6to7p.m.

)
Composites:
Introduction:
Whenanytwoormoredissimilarmaterialarecomposeorstructuredtogetherit
formscompositematerial
Combinationofmaterialisalsoformingincaseofalloy,butalloyisdifferentfrom
thecompositewhentwoormoremetalornonmetalcompletelydeserveand
formahomogenoussolidsolution.Itiscalledalloy.
thephysical&chemicalpropertiesareconstantateverypointinalloy
compositesaredifferentfromthealloy
Twoormorematerialarecomposedorstructuredtofromacomposite.
Theseareseveralmethodofmanufacturingaproduct.
compositemaybemanmadeornatural,woodmaterialobtainfromtreesalsoa
compositewhichisformnaturally
Compositeisaclassofnaturalmadeupofdifferentclassofmaterialsuchas
metal,ceramics,polymersetc.

Properdefinitionofcomposites:
Thecompositeisamaterialsystemcomposesofamixtureorcombinationoftwo
ormoremicroormacrocontinuous.Thatdiffersinformandchemical
compositionwhichareessentiallyinsolubleineachother.

Classificationofcomposites:
Therearedifferentwaysofclassifycompositesasbelow.
1. BaseonProcessofcompositeformation

Themanmadecompositionareproducedbyuseofmanufacturing
technology
Inthisproductismaterialinsteadofanobject.
composites
Manmadeormanufactured
Natural
thiscompositesarefibers,reinforced,plastics,ceramic,concrete,
Thenaturalformcompositeareproducedbylivingspecies.Asper
examplewoodmaterialformbytrees.isanaturallyformcomposite.
Theconstitutionofwoodarecentralizecellreinforcedbypolymer
substancecalllignin.

2. baseonconstructionpattern

3. baseonmethodofreinforcementofstructuring

Structureofaspectcomposites:
Mostofcompositesaremadeoftwobases,oneofthemisoftencallasmatrix
whichspreadswithincompositesascontinuousmaterialandsurroundtheother
phaseoftencalldiapersphaseasreinforcedmaterial.
Thereinforcedmaterialwillbefineparticle,veryshort,orcontinuousfibers.
Thepropertiesofcompositesarethereforethefunctionofpropertiesof
constantphase,geometry,sizedistribution&orientationreinforcementof
phasewithinthematrix.
composites
Agrometed Reinforced
Laminated
SurfaceCotted
Composites
Particlereinforced
Large Particle
Dispersion Particle
Fiberreinforced
continuous
(aligned)
Discontinuous
(short)
Aligned
Randomlyoriented
Structural
Laminatees
Sandwichpanels

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