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Modern Materials
What are Modern materials?
Modern materials are those which are continuously being developed by the invention of new or improved processes.
Unlike Smart materials, their characteristics do not necessarily change with external effects such as temperature or pressure.
The X33 - next generation shuttleSource:www.tc.cornell.edu/Research/CMI/ RLVsource/Pics/x33-bigr.jpg
Modern Materials
Teflon
Teflon is a polymer with very low surface adhesion (non-stick) characteristics.
Teflon is used on cooking utensils, like frying pans…
Teflon frying panSource: www.amazon.com
Modern Materials
Teflon
… also as a dry bearing material in machines and even in clothing to resist stains and moisture absorption.
Teflon fabric coating causes moisture to “bead” on the surface.Source: www.fjallraven.com
Modern Materials
Optical fibres
Optical fibres are long, thin, hollow tubes usually made from glass, which have a mirrored inner surface.
They are designed to carry light for extremely long distances and function on the basis of total internal reflection.
Optical fibresSource: www.bbc.co.uk
Click here for more information and ananimation on optical fibres on the UlearnToday website
Modern Materials
Carbon Fibre
Carbon fibre is often used to provide strength in a composite with other materials.
It has very high tensile strength and produces very strong, lightweight material.
Carbon fibre sheet
Source: www.freenetpages.co.uk/hp/ davebrian/cdev/sheet.htm
Modern Materials
Carbon Fibre
Carbon fibre is often used to manufacture lightweight equipment for high tech applications – for example in racing cars and boats.
Racing car seat made from carbon fibreSource: www.340r.net/news
Modern Materials
Carbon Fibre
Carbon fibre is often used to manufacture lightweight equipment for high tech applications – for example in racing cars and boats.
Carbon fibre reinforced speed sailing craftSource: www.compositespars.com
Modern Materials
Composite materials
A composite material is formed from a combination of materials which are bonded together.
They can be composed of fibers, layers of materials (laminates), particles or flakes.Lightweight carbon composite bike frame
Source: www.cobr.co.uk
Modern Materials
Composite materials
A composite material is formed from a combination of materials which differ in composition or form and are bonded together.
They can be composed of fibers, layers of materials (laminates) or composed of particles or flakes.
Composite motor bike wheelsSource: www.dymag.com/ Motorcycle%20Homepage.
Modern Materials
Cellular materials
Metallic foams have low density, high strength and stiffness, good damping and energy absorption and are non flammable.
Applications inlcude transportation, as well as in the aero and space industry.Cellular metal foam
Source: www.oeaw.ac.at
Modern Materials
Genetically modified foods
Scientists are developing new plant strains by changing their genetic structure (DNA).
The new plants can be pest or drought resistant to help third world countries; onions that don’t make you cry or; caffeine free coffee, to name but a few.
GM cornSource: http://globalchange.umich.edu
Modern Materials
Synthetic flavours
Did you know that hedgehog flavour crisps aren’t really made from hedgehogs!
Synthetic flavours can be manufactured to taste like natural products. Check out your next crisp packet!
Source: www.learn.co.uk