as2 chapter 2 compliant composite smart materials Flashcards
carbon fibre reinforced plastic properties
thermal and electrical insulating properties, durable, expensive used in motor vehicle and aerospace industries
glass reinforced plastic (fibreglass) properties
plastic matrix reinforced by glass fibres, high tensile strength, lightweight, strength and stiffness can be controlled by layers
kevlar properties
super strong chemical structure due to how chemical fibres are knitted together, lightweight, can withstand extreme temps used in bullet vests and car tires and brakes
tungsten carbide properties
inorganic chemical compound containing equal parts tungsten and carbon atoms, high impact resistance and good anti wear and corrosive resistance, used for jewellery
nanotechnology definition
use and control of tiny particles of matter- x1 billionth of a metre in size (molecular engineering)
uses of nanotechnology
sunscreen- zinc oxide nanoparticles, clothing- zinc oxide UV protection/water resistance, potential uses- medicine, energy and water filtration
biophotovoltics definition
generating electricity from light energy via photosynthesis of living organisms such as moss, during the process bacteria in soil reacts with organic material to produce a range of by-products such as electrons
shape memory alloys (nickel-titanium) definition
they plastically deform and return to their original shape when temperature is applied, can be programmed to form a certain shape when temp is applied, used in springs, valves and medical instruments
piezoelectric materials definition
a transductor is a device that converts energy from one form to another, piezoelectric transducers convert mechanical energy to electrical or vice versa, made from thin films of materials like quartz which are coated with metallic film, uses- greeting cars that play sounds, power generating paths, gym equipment
light emitting polymers (leps) definition
plastics which emit light when voltage is applied, semi conductor plastic sandwiched between two electrodes. cheap, efficient, high resolution
