modern material

Question 1

what is graphene

Answer 1

two dimentional layer of carbon. harder than diamond, 300 time stroner than steel and is currently the lightest known material

Question 2

properties of graphene

Answer 2

light weight
transparent
flexible
tough
very good conductor of electrisity

Question 3

uses of graphene

Answer 3

solar powered phones and water filtes

Question 4

what is metal foam

Answer 4

metal foam is produce by injecting gas into metal when its in a molten state

Question 5

what are the properties of metal foam

Answer 5

very lightweight
high compressive strength
porus
exellent energy absorbing properties

Question 6

uses of metal foam

Answer 6

soundproofing in cars

crashprotection saften feature

Question 7

what is titanium

Answer 7

a relativley new metal

Question 8

what are the properties of titanium

Answer 8

high strength to density ratio
excellent resistance to corrosion

Question 9

what are the uses of titanium

Answer 9

surgical instements and rplacment body parts such as hip joints

Question 10

what is liquid crystal display (LCD)

Answer 10

laminate of two layers of glass with a liquid crystal core

Question 11

what are properties of LCD

Answer 11

ooaque when an electrical current is applied to the liquid crystal core

Question 12

what are usces of (LCD)

Answer 12

flat screen TVs

Question 13

what are nano materials

Answer 13

nano materials ar very small: one billionth of a metre in size. they are added to other materials to improve their properties

Question 14

what are properties of nano materials

Answer 14

can be coated onto glass to make it ‘self cleaning’

can be added to sports equpment to make it lighter and stronger

antibacterial qualities

Question 15

uses of nano materials

Answer 15

glass
sports equipment
antibacterial socks

Question 16

what is polytetrafluorthylene (PTFE)

Answer 16

a non stick coating aplied to surfaces to make them slipery

Question 17

properties of PTFE

Answer 17

Non-stick

Question 18

uses of PTFE

Answer 18

non stick kitchen utensils and pans

Question 19

what are corn starch polymers

Answer 19

made from polyactic acid that is found in potatoes corn and maze it is an alternative to oil based polymers

Question 20

properties of corn starch polymers

Answer 20

reneqble
biodegradable

Question 21

uses of cornstarch polymers

Answer 21

disposable cutlery and food packaging

Question 22

what is anodised aluminium

Answer 22

coating applied to aluminium by an electrolytic process

Question 23

properties of anodise aluminium

Answer 23

harens the surface of aluminium. can be dyed to change the apearance of aluminium

Question 24

uses of anodised aluminium

Answer 24

sports drinks bottles
components for climing equipment
mountain bikes

Question 25

what is nickel plating

Answer 25

a coating applied to metal by an elecrolytic process

Question 26

what are properties of nickel plating

Answer 26

prevents corrosion and wear of the base metal

Question 27

uses of nickel plating

Answer 27

door handles, belt buckles, nuts and bolts

Question 28

what is polymer-coated steel

Answer 28

a coating of a thermoforming polumer applied to hot metal

Question 29

properties of polymer-coated steel

Answer 29

prevents corrosion and alter the appearnace of the base metal

Question 30

uses of polymer-coated steel

Answer 30

tool handles

Question 31

whats a smart material

Answer 31

a materia that reacts to the enviromental changes such as heat and light

Question 32

what are shape memory alloys (SMAs)

Answer 32

a metal that will return to its original shape when placed in hot water or heated

Question 33

whats a thermmochromatic material

Answer 33

a meterial that reacts to heat for example a baby spoon that changes colour pigment when its to hot

Question 34

whats a photochromic material

Answer 34

a material that reacts to light for example sunlasses that change pigment based on light intensity

Question 35

what is polymorth

Answer 35

a plymer that can be shaped and reshaped many times when warmed to 62 c the polymorth becomes flexible and easy to mould into the desired shape it sets as it cools an dbecoms stiff and strong it can be used for making pespoke shapes such as ergonomic handles it is usefulf for making prototype mecanical parts and for making molds

Question 36

what is qtc

Answer 36

quantum tunneling composite is a flexible polymer with tiny metla particles embeddded into it. when it is squeexed pressure fores the praticles togehte randa currne tof electrons flows between the neighboring particles. th eprocess of eeectron jumping across a gap frome one condtucting material to another is known as quantup tunneling. it is used in micros witches ,outdoor items that may be affected by water and touch sensitive pads

Question 37

what is glass reinforced plastic

Answer 37

grp is a polyester material reinforced with the addition of glass fibre. it is produced by combining thermos setting polyester resin and glass fibre matting making a storn and lightweigh composite. grp is used in the manufacture of circuit boards, in the marine idustry for boat hulls and in the customkit car market

Question 38

what is carbon fibre

Answer 38

carbon fibre reinforce platsic is a thermosplastic reainfroced with carbon fibres. it has a high streght to weigh ratio and is very rigid. it is used in aerospace engineering fro fuselae compnetsm formula one vechile chassis and many items of sports equipment

Question 39

what is a composite material

Answer 39

a material which contains two or more different materiasl that are combined to create a material with iproved properties and functionality

Question 40

what is gor-tex

Answer 40

gortex is a fabric with breathable yet waterproof properties it allow vapour produced by the wearer to escape yet repels water making it an effective waterproof fabric commonly used for outdoor clothing

Question 41

what is kevlar

Answer 41

a plastic fibre with high tesile strength. it is heat resistant and extremely hard wearing. it is a flexible and lightweigh synthetic fibre from the class of fibres known as aramids which are modified polyamide fibres. polyamide molecules connect to form long chains. these are aligned parallel to each other isndi the fibres actind as reinforment to give kevlar its strength. kevlar fibres ae so tigtly spun that it's nearly impossible to seperate them