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Product Design > Composite Materials > Flashcards

Composite Materials Flashcards

0
Q

Name characteristics of fibre reinforced composites?

A

They have good strength to weight ratio
Resistant to corrosion
Good fatigue resistance
Possess a low thermal expansion

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1
Q

What is the use for plywood and why is it used for that usage?

A

Back of furnitures because it can be flexible for producing curved shapes

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2
Q

Name me two fibre reinforced composites?

A 
Natural woods
Polymers mixed with fibres
GRP
Plastic laminates 
Carbon fibre
Elastomers mixed with fibres
Concretes mixed with fibres
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3
Q

What are the characteristics of particle based composites?

A

High strength in compression so low tension
Good stability
Uniform structure ensuring consistent strength
Free from surface defects

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4
Q

What is a cermet?

A

A mixture of a metal and a ceramic

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5
Q

What are the advantages of cermets?

A

They are resistant to high temperatures

They are tough and shock resistant

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6
Q

What is the advantage of tungsten carbide on the cutting edge?

A

It results in a much more durable cutting edge

Reduced necessity for re-sharpening

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7
Q

What is the advantage of chipboard flooring?

A

Large areas can be covered with one sheet

The cost is reduced

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8
Q

What are the general properties of Kevlar?

A 
High strength to weight ratio
Low electrical conductivity 
High chemical resistance 
High toughness
High cut resistance
Flame resistant and self extinguishing
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9
Q

What is Kevlar

A

Is a mixture of aromatic and aramid molecules

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10
Q

What is block board used for?

A

Tabletops

Furniture carcasses

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11
Q

What is Stirling board used for?

A

Roofing
Shuttering for casting concrete
Flooring for sheds and workshops

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12
Q

What is a fibre-reinforced composite?

A

A material that is made up of resins and fibres.

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13
Q

What is a particle-based composite?

A

Composites that consists solely of particles of two or more different materials.

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14
Q

Name two particle based composite?

A 
Cermets 
Tungsten carbide
Titanium carbide 
Filament-reinforced ceramics
Tungsten mesh and ceramics
Zirconia reinforced with titanium 
Concretes 
Tarmac
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15
Q

What is chipboard used for?

A

Knockdown furniture
Kitchen cupboards
Work tops
Flooring

16
Q

What is MDF used for?

A

Furniture sides

Pattern making for castings

17
Q

What is hardboard used for?

A

Backs of cupboard

Drawer bottoms

18
Q

Name two sheet based composites?

A 
Plywoods
Blockboards
MDF
Hardboard
Chipboard
Sterling board
Hexaboard 
Maplex
Metal/polymer sheet

Product Design (5 decks)

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