Nano-ZrO2 is used as reinforcement material. ZrO2 at room temperature is considered to be an important
structural ceramic because of its excellent mechanical properties, such as fracture toughness, high strength, and
hardness. It is also an important material because of its use in different fields of chemistry such as ceramics and as
catalyst. Ceramics made with ZrO2 are known to show a good improvement in strength and toughness.