Chemical Bonding, Properties and Structure - Alloys as Useful Materials Flashcards
1
Q
what are most metals
A
most metals are alloys
2
Q
what is bronze
A
bronze is an alloy of copper and tin
3
Q
what is brass
A
brass is an alloy of copper and zinc
4
Q
what is the gold which is normally used in jewlery
A
the type of gold that is normally in jewellery is an alloy with silver, copper and zinc
5
Q
what is the proportion of gold used in an alloy measured in
A
carats
6
Q
what level of gold is 100%
A
24 karat
7
Q
what are steels
A
alloys of iron that contain specific amounts of carbon and other metals
8
Q
What are the properties of high carbon steel
A
strong but brittle
9
Q
what are the properties of low carbon steel
A
softer and more easily shaped
10
Q
what are the properties of steels containing chromium and nickel (stainless steels)
A
hard and resistant to corrosion
11
Q
what density are aluminium alloyts
A
low
