1.1 - Material Applications Flashcards
What is ferrous metal?
A metal containing mostly iron and carbon.
They’re magnetic and will not rust.
Give some examples of ferrous metals
Low carbon steel,
Medium carbon steel,
Cast iron
What is non ferrous metal?
Metal that doesn’t contain iron.
They’re not magnetic and do not rust.
Name some non ferrous metals
Aliminum Copper Zinc Silver Gold Titanium Tin
What is an alloy metal?
A metal combined with another metal or element.
Alloys can be sub
classified as ferrous and non ferrous.
What are some ferrous alloy metals?
Stainless steel, die steel
What are some non ferrous alloys?
Bronze
Brass
Duralumin
Pewter
What is a hard wood?
A wood from deciduous trees (slow trowing and loose their leaves in autumn)
Name 5 hardwoods
Oak Ash Mahogany Teak Birch Beech
What is a softwood?
A wood from a coniferous tree (fast growing and evergreen)
Name 5 softwoods
Pine Spruce Douglas Fir Redwood Cedar Larch
What is manufactured board
A man made wood-based composite material.
- available in much larger sizes than solid wood
Name 5 manufactured boards
Plywood Marine plywood Aeroply Flexible plywood Chipboard MDF
What is a thermoplastic?
Can be reheated and reshaped repeatedly - can be recycled.
Long linear chain molecules held by van dee Walls forces.
Name 5 thermoplastics
LDPE(Low density polyethylene) HDPE Polypropylene (PP) HIPS ABS PET Nylon PVC
What is a thermosetting polymer?
Plastic which when heated, chemically changes where the molecules form rigid cross links
Cant be reheated or reshaped
Name 3 Thermosetting polymers
Urea formaldehyde (UF)
Melamine formaldehyde (MF)
Polyester resin
Epoxy resin
Whats an elastomer
Plastic which can be deformed under pressure at room temperature, and will reform to its original shape when released from pressure.
- weak bonds so can stretch easily
Name 3 elastomers
Natural rubber
Polybutadiene
Neoprene
Silicone
Name 5 paper and boards
Layout paper Cartridge paper Tracing paper Bleedproof paper Treated paper Bleached card Mount Board Duplex Card Foil backed and laminated Card Metal effect card
What is a composite
A material made of 2 or more different materials to enhance properties.
Can be - fibre based, particle based or sheet based
Name 3 composites
Carbon fibre reinforced plastic Glass fibre reinforced plastic Tungsten carbide Aluminium composite board Concrete Fibre cement Enginereed wood
What is a smart material?
A material that’s physical properties change in response to an input or change in the environment, - such as electricity, pressure, temperature or light
Name 3 smart materials
Phosphorescent pigment Photochromic pigment Shape memory alloys Electroluminescent wire Thermochromatic pigment
What is a modern material
A material developed through the invention of new or improved processes - eg, as a result of man man materials
Whats the difference with smart and modern materials
Modern materials do not react to external change
Name 3 modern materials
Kevlar, precious metal clay High density modelling foam Polymorph Carbon fibre
What is compressive strenth:
Abilty to withstand being crushed
