Materials Flashcards

1
Q

Strength

A

Ability for a product to withstand force without breaking or deforming

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2
Q

Toughness

A

Ability to withstand sudden impacts without fracturing

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3
Q

Hardness

A

Ability to resist scratching abrasion or wear

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4
Q

Stiffness

A

Ability for a product to resist deformation with applied force

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5
Q

Thermoplastic

A

Can be heated and cooled repeatedly without compromising the properties of the material. Any waste can be recycled

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6
Q

Thermoset

A

Like an egg it can be heated or reshaped, however is stronger and more heat resistant

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7
Q

Additives

A

Mixed with plastic to make it last longer be cleaner, safer more colourful e.g.

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8
Q

Epoxy Resin (ER)

A

Thermoset. Low Shrinkage, Strong and excellent adhesive qualities. Normally used for bonding application and surface coatings.

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9
Q

Melamine Formeldahyde (MF)

A

Thermoset. Tasteless, waterproof, ouderless, scratch resistant and an electrical insulator. Normally used on worktops, buttons and clothing.

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10
Q

Polyester Resin (PR)

A

Thermoset. Can be flexible formed without pressure or heat, hard and an electrical insulator. Normally used on car body parts.

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11
Q

Urea Formeldahyde (UF)

A

Thermoset. Electrical Insulator, good adhesive properties, hard and stiff. Normally used in electrical fittings

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12
Q

Acrylonitrile Butadiene Styrene (ABS)

A

Thermoplastic. Chemical Resistant, strong and high surface finish

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13
Q

Cellulose Acetate

A

Thermoplastic. Flexible, hard, light and transparent

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14
Q

Polyamide (PA) Nylon

A

Thermoplatic. Durable, easily machined and self lubricating and tough

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15
Q

Polyethylene (HDPE)

A

Thermoplastic. Chemical Resistant and tough

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16
Q

Polyethylene (LDPE)

A

Thermoplastic. Stiff, hard and easily machined

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17
Q

Polypropylene (PP)

A

Chemical Resistant and Light

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18
Q

Polystyrene (PS)

A

Light stiff water resistant

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19
Q

Polyvinyl Chloride (Plasticised)

A

Soft, flexible and electrical insulator

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20
Q

Polyvinyl Chloride (uPVC)

A

Abrasive Resistant and water and weather resistant

21
Q

Ferrous Metal

A

Contain Iron. Inexpensive, but corrosive and needs maintenance or a surface finish

22
Q

Non-Ferrous

A

Resistant to corrosion as it has no steel

23
Q

Alloys

A

Mixing two or more materials with one containing metal. Can give it better qualities

24
Q

Cast Iron

A

Corrosive, strong and self-lubricating

25
Q

Mild Steel

A

Strong, Tough reasonably malleable, corrosive

26
Q

High Carbon Steel

A

Malleable, corrosive

27
Q

Stainless Steel

A

Tough, ductile and corrosion resistant

28
Q

Tin

A

Soft, ductile and corrosion resistant

29
Q

Lead

A

Heavy, malleable, soft and corrosion resistant

30
Q

Aluminium

A

Soft, good strength to weight ratio, light and high resistance to corrosion

31
Q

Copper

A

Good heat/ electrical condictor, high resistance to corrosion.

32
Q

Brass

A

Good heat/ electrical condictor, high resistance to corrosion and harder than copper

33
Q

Bronze

A

Resistant to corrosion

34
Q

Zinc

A

Soft, maluable and high resistance to corrosion

35
Q

Hardwood

A

Deciduous trees, slow-growing take more maintenance

36
Q

Softwood

A

Grow faster, cheaper and less maintenance

37
Q

Manufactured Board

A

Man Made, normally made from waste products, availability in large sheets and ease of manufacture

38
Q

Oak

A

Hardwood, Strong, Durable, Hard, Tough and will stain steel

39
Q

Mahogany

A

Hardwood, Strong, Easy to Work and Durable

40
Q

Beech

A

Hardwood, Strong, tougher than oak, straight-grained

41
Q

Scots Pine

A

Softwood, Straight grained, fairly strong and good workability

42
Q

Red Cedar

A

Softwood Light, Soft, Weak and weather durable

43
Q

Spruce

A

Softwood Non Durable, Straight Grained, Light and Good Elasticity

44
Q

Plywood

A

Stable, Strong, and Easy to Machine

45
Q

Hardboard

A

Weak, brittle, hard on one side soft on the other

46
Q

MDF

A

Easily Machined, Moulded and Painted

47
Q

Chipboard

A

Realtiveley weak and inexpensive

48
Q

Blockboard

A

Stiff and Heavy