U3-1-3 - Ceramics and Novel Materials

Question 1

Compared to metals and plastics, ceramics are:

harder or softer?

Answer 1

harder

Question 2

Compared to metals and plastics, ceramics are:

less brittle or more brittle?

Answer 2

more brittle

Question 3

Give one example of how ceramics are used.

Answer 3

Any one of:

joint replacements, catalytic converters, kitchen knives, etc.

Question 4

State one advantage of ceramic knives compared to metal knives.

Answer 4

Any one of:
* do not react with acids in food
* harder than metal, so keep a sharp edge for longer.