Which of the following are desirable characteristics of refr

Which of the following are desirable characteristics of refractory ceramics?

Ability to remain unreactive and inert in severe environments.

Ability to withstand high temperatures.

Ability to withstand low temperatures.

High strengths.

Thermally insulative.

Solution

important characteristic of refractory material is that it should retain its stregth at high temperatures. Refractory materials are used in linings for furnaces, incinerators, reactors, etc. Hence they should also be non reactive and inert. They should be good insulators to prevent heat loss.

So the following are desirable characteristics of refractory ceramics:

Ability to remain unreactive and inert in severe environments.

Ability to withstand high temperatures.

Thermally insulative.