composites materilas

Question 1

what is a composite material

Answer 1

composite material consists of two or more materials with different properties.

Question 2

types of composite materials

Answer 2

carbon fibre reinforced plastic CFRP
glass reinforced plastic GRP
tungsten carbide
aluminium composite board
reinforced concrete and concrete
fibre cement
engineered wood

Question 3

CFRP

Answer 3

lightweight, corrosion res, tough and hard, low thermal expansion, good compressive strength

uses - sports equipment and prosthetics

Question 4

GRP

Answer 4

lightweight, corrosion res, tough and hard, low thermal expansion, good compressive strength

uses - sports car bodies and parts, kayak shells

Question 5

tungsten carbide

Answer 5

res to corrosion, and res to high temperatures, also hard and tough

uses - cutting tools e.g. drill bits

Question 6

aluminium composite board

Answer 6

lightweight and rigid, tough and malleable, it has good thermal and sound insulation as well as good vibration damping

uses - sound proof panneling

Question 7

concrete

Answer 7

high compression strength but lower tensile strength, it has few surface defects and is easy to mold

uses - house foundation and pahways

Question 8

fibre cement

Answer 8

lighter than reinforced concrete, it is hard and tough and is good at low temperatures

uses - suspended floors and pathways

Question 9

engineered wood

Answer 9

good aesthetics and structural support, corrosion res, more lightweight than concrete

uses - bridges, decking, and roof beams

Question 10

reinforced concrete

Answer 10

high compression and tensile strength, few surface defects and is heat resistant

uses - buildings and retaining walls