ceramic and composites

Question 1

what are the two types of ceramics

Answer 1

glass , clay ceramics

Question 2

what is the name of most of the glass that is used

Answer 2

soda - lime glass

Question 3

what are ideal uses of soda - lime glass

Answer 3

windows
bottle

Question 4

how is soda lime glass made

Answer 4

• mix together sand , sodium carbonate and limestone
• heat mixture in furnace till it melts
• when it cools it soldifies into any shape

Question 5

what is an issue with soda lime glass

Answer 5

• has relatively low melting point = limits its uses

Question 6

what is borosillicate glass

Answer 6

• a type of glass that has a higher melting point than soda lime glass = makes it useful for objects that require heating eg labware / kitchenware

Question 7

how is boroscillicate glass made

Answer 7

by melting a mixture of sand and boron trioxide

Question 8

what are examples of uses of clay ceramics

Answer 8

• pottery
• bricks

Question 9

where is clay found

Answer 9

• it is a mineral found in the ground

Question 10

how is clay made

Answer 10

• when clay is wet , it can be shaped and heated in a furnace to harden

Question 11

how are most composites made

Answer 11

by combining two different materials - the reinforcement ( which consists of fibres or fragments of a material ) - the reinforcement is surrounded by a matrix / binder material

Question 12

what is a key feature of composites

Answer 12

• they have different properties to the materials in them

Question 13

what are the porperties in carbon fibre composites

Answer 13

• it is very strong and light = useful in cars / aircraft parts

Question 14

what are the types of composites

Answer 14

• reinforced concrete
• carbon fibre composite

Question 15

what is the porperty of reinforced concrete

Answer 15

• it is extremely strong = used to make buildings