What are the hardness and heat resistance of Zirconium dioxide?

Zirconium dioxide powder (ZrO₂) has a high melting point of around 2700°C, making it suitable for high-temperature applications. Its hardness is comparable to corundum and diamond, and it exhibits high strength and toughness, which makes it popular in mechanical applications. Chemically, it has excellent corrosion resistance, being inert to acids, alkalis, and other chemicals. Additionally, ZrO₂ has good insulating properties and transparency, leading to its use in electrical and optical fields.

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