Flashcards
Composite materials
Cards in this deck (25)
- 1name the 3 main groups of composite materialsfibre reinforced composites,
particle based composites,
sheetbased composites - 2name the common fibre reinforced compositesglass fibre
carbon fibre
kevlar - 3name the positives of Carbon Fibrehigh strength to ratio.
VERY EXPENSIVE
Aesthetically pleasing - 4name an impact of carbon fibreefficiency in aircraft has improved due to weight ratio.
- 5name the cons of carbon fibreonly avaliable in black
not easily recycled
not easily repaired - 6what is Kevlar made from?aromatic and aramid molecules, melted and spun into fibres, held by hydrogen bonds
- 7positive kevlar propertiesFlexable
lightweight
high toughness
flame resistant - 8how is glass fibre madeglass is spun into strands
then coated in resin to stick together
put into mould - 9name the common particle based onesCONCTRETE
cement
chipboard floorboards - 10what is concrete made fromaggregate, sand and cement
- 11what is it particluary good for (concrete)when subjected to compression loads
- 12name the positives of glass reinforced plasticlightweight
uv resistant
waterproof
tough - 13negatives of glass reinforced fibrethermoset - cant be recycled - bad for the environment
- 14name a composite material that is used for racing cars and whycarbon fibre reinforced plastic - because
lightweight therefore giving the car a greater performance
good weight to strength ratio
can be moulded to a variety of shapes, due to many layers - 15composite material and give application for itglass reinforced plastic - boat hulls
crabon fibre reinforced plastic - racing cars - 16name a thing to use for Kevlar and whyaircraft pilot outfit
because it is flame resistant - 17process of carbon fibreavailable in woven matt, cut using ceramic scissors, place into mould half, resin put on, forced into the shape of the mould, all placed in the oven, 8hrs 170c, print rigid across the resin
- 18positives of concretemoulded into complex shapes
good under compression
BUT NOT GOOD UNDER TENSION!!! - 19What is added to concrete to make is good under tensionsteel - added at its most tense state, put underneath then pulls it together so does not crack and break.
- 20what is a cermet?a mixture of metal and ceramic based particles
- 21what process is the only suitable process for making cermetsintering
- 22pros of cermetsresistant to high temps, tough.
- 23cons of cermetsbrittle (broke in the sink)
- 24name a product that could be made from glass reinfoced plastic?canoes, small boat hulls
- 25—
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- AS - Level Product Design Flashcards on Composite materials, created by Sophie Newman on 03/02/2016.
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- Sophie Newman
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