materials and their potential application Flashcards
(22 cards)
properties of copper?
malleable, ductile, non-ferrous with high electrical/thermal conductivity
properties of silver?
the highest thermal/electrical conductor and the most reflective material
properties of wood?
versatile, sustainable and grows the older it gets
properties of hardwood?
grow slowly but are strong and hardwearing
properties of softwood?
easier to cut, buy and sustain than hardwoods
types of plastics?
thermoplastics, thermosetting plastics, plastic memory and synthetic/natural plastics
advantages of plastics?
lightweight, versatile, easy to mould and cheap
disadvantages of plastics?
non-renewable, can deform and are toxic
properties of acrylic?
hard, durable but brittle
properties of polypropylene?
light, tough, resistant to chemicals and resists fatigue
properties of polyvinyl chloride (PVC)?
good chemical resistance, resists weathering, tough and light
properties of nylon?
thermoplastic silky material that can be melt-processed into fibres which are tough and self-lubricating
properties of cellophane?
thin, transparent and has low-permeability to air, grease and bacteria
properties of polyester?
used as resin and has good heat and chemical resistance
properties of polytetraflouroethylene (PTFE)?
very high melting point
properties of MDF?
inexpensive
properties of epoxy resin?
corrosion and electrical resistant, with good bonding qualities.
properties of cellulose based boards?
organic polymer, inexpensive so used for packaging.
properties of carbon fibre?
extremely thin fibres of carbon woven into a sheet, very strong and light, heat resistant
properties of glass reinforced plastics (GRP)?
lightweight, durable, cheap and easy to mold
properties of ferrous metals?
metals which contain mainly iron.
what happens when more carbon is added to steel?
ductility decreases but hardness and brittleness increase
