Definition of Smart Materials design/electronics/materialsrev5.shtml warren.org/downloads/smartmaterials/Smart%20and%2 0Modern%20Materials.htm technology.info/alevelsubsite/page11.htm MEMS/sma_mems/smrt.html Look it up… Next

Polymo rph Polymo rph Smar t Grea se Smar t Grea se Lenti cular Sheet Lenti cular Sheet Thermoc hromic Ink Thermoc hromic Ink Photoc hromic Ink Photoc hromic Ink Smar t Putt y Smar t Putt y Smar t Wire Smar t Wire Shap e Memo ry Wire Shap e Memo ry Wire Electr otexti le Electr otexti le Glow in the Dark Pigme nt Glow in the Dark Pigme nt Thermoc hromic Film Thermoc hromic Film Cold Formi ng Plast ic Cold Formi ng Plast ic

Polym orph Smart Material s Polymorph is a thermoplastic material that can be shaped and re - shaped any number of times. Although expensive, polymorph is suitable for 3 D modelling as it can be shaped by hand or pressed into a shape through the use of a mould. Process Boil a kettle, pour the water into a beaker and wait a few minutes until the water has cooled slightly (62. c ) Place a teaspoon of the polymorph granules into the water and stir together until they form a transparent mass Remove from water and shape shop.com/Products/Polymor ph/Polymorph.pdf Back Video Clip Video Clip

Smart Material s Smart Grease Smart grease is a particularly sticky and viscous gel with shear characteristics. It can be used to prototype applications to improve performance or it can be used in novel applications such as wound up motors to provide uniform speed and output Process Under normal circumstances when he wheel is wound up and released, it will spin rapidly at first Apply a tiny amount of grease between the friction surfaces, and the heel will turn at a uniform speed, and the stored energy will be released uniformly Back Video Clip Video Clip

Smart Material s Lenticu lar Sheet Lenticular embossing has made it possible to print and animate many images on a single substrate. A similar technology is used to create stunning three dimensional illusions on clear plastic sheet. Process Place the Lenticular sheet on a dark surface ( lenticular - side up ), put the coin in the middle of the sheet and it will appear to be sinking into the sheet up to 6 mm ! sheets.com/ Back Video Clip Video Clip

Smart Material s Thermochr omic Inks These thermochromic pigments are made up as a liquid paste compatible with any acrylic media. At normal room temperature the pigment appears coloured, but at 27. c the colour disappears. When the temperature falls again the pigment colouring re - appears. Process Mix a tiny amount of thermochromatic pigment with the acrylic base, apply a sample onto a piece of card and heat to see the pigment disappear, as it cools the pigment colour will come back co.uk/images/SMARTCOLO.P DF Back Video Clip Video Clip

Smart Material s Photochr omic Inks Photochromic ink darkens as the light level increases. Some photochromic inks change colour. It is UV light that causes the darkening of the ink, which means the ink works best in natural light. This technology has been manufactured to produce ‘ reaction lenses ’ spectacle lenses which darken in bright UV light. Process Mix a tiny amount of photochromic ink with the acrylic base, then apply a sample onto a small piece of card and place under UV light ( natural light ) the pigment will disappear or change colour, as it is taken away from the UV light the colour will return ife.co.uk/future.html Back Video Clip Video Clip

Smart Material s Smart Putty This silicon based material is an example of visco - elastic polymers. They are relatively soft and mouldable but assume rubber like qualities when impacted Although the putty is sold as an amusement, it does have serious applications, it is used as a medium to carry grit and polish channels in ultra - hard components such as turbine blades. Process Mould then bounce carefully please Back Video Clip Video Clip

Smart Materia ls Smart Wire Shape Memory Alloy ( SMA ) there are a number of alloys that exhibit useful memory characteristics. It can be heat treated to ‘ remember ’ when it is heated to 70. c it should contract by 5% As a wire it in not being used in garments where body heat changes the characteristics of the garment Can you think where this would be needed? Process Secure the wire to the paper with tape Attach a 3 volt power source The wire will contract pulling the paper up into a slight curve Turn the power supply off and as the wire cools the wire will resume its original length ula.com/sma-smart- wire-introduction/ Back Video Clip Video Clip

Smart Materia ls Shape Memory Alloy A length of wire can be made to remember that it should be straight in temperatures above 70. c This cycle of bending and shaping when heated can be continued millions of time. The temperature at which SMA ‘ remembers ’ it original form is called the transition temperature, and when this is reached it changes shape. Process Bend the wire at room temperature, it will remain this way all the time it is at room temperature Place it in a beaker of hot water (70. c or above ) and the wire will immediately straighten out titanium.com/dosya/Seminar%20Gener al%20Applications%20of%20NiTi%20Sh ape%20Memory%20Alloys%20%28dilib al%29.pdf Back Video Clip Video Clip

Smart Materia ls Electro textile As the name indicates Electrotextiles are textiles with electrical properties. They are made by blending, coating or weaving textiles with copper and / or nickel and / or silver fabrics Task There is a range of textile samples on the desk, use the micrometer to determine which textiles can carry an electrical current Back Video Clip Video Clip

Smart Materia ls Glow in the Dark Pigment This pigment absorbs and stores sufficient energy to give an afterglow lasting up to ten times longer than zinc sulphide phosphorescent, after exposure to natural or artificial light - it will glow practically all night ! Process Pigment is HIGHLY concentrated, so only mix a TINY amount with the acrylic base Leave in artificial or UV light to store up energy Place in the dark to see it glow utGlow.html Back Video Clip Video Clip

Smart Materia ls Thermoc hromic Film This material compromises a substrate eg. Self adhesive plastic film, which is then overprinted with thermochromic crystal ink as the temperature changes the liquid crystals re - orientate and produce an overall colour change. Can be used to give temperature indications - like a thermometer. Process Place the sample face - down and peel off the protective backing Place the resistance wire onto the sticky surface and put the backing back on to secure in place Connect the ends to 1.5/3 volt battery and the wire will heat up DO NOT OVERHEAT Back Video Clip Video Clip

Smart Materia ls Cold Forming Plastic This amazing plastic can be shaped by hand at room temperature to form a permanent bend - no need for oven or strip heaters ! It looks just like acrylic but has toughness approaching polycarbonate. It is also a shape - memory polymer, so it will return to its original shape when heated. Back Video Clip Video Clip

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