50%, 50%
60%, 40%
70%, 30%
80%, 20%
Answer is Right!
Answer is Wrong!
The correct answer is: C. 70%, 30%
Cermet is a composite material made from ceramic and metal. The usual percentages of clay and metal in cermet are 70% ceramic and 30% metal. This is because ceramic is a hard and brittle material, while metal is a strong and ductile material. The combination of these two materials gives cermet its unique properties, such as high strength, toughness, and wear resistance.
Option A is incorrect because it would result in a cermet that is too brittle. Option B is incorrect because it would result in a cermet that is too weak. Option D is incorrect because it would result in a cermet that is too soft.