Aluminium Oxide (Noun)
Meaning
Any of various forms of aluminum oxide occurring naturally as corundum.
Classification
Nouns denoting substances.
Examples
- Aluminium oxide is among the many abrasive materials commonly used in sandpaper and grinding wheels due to its high hardness and durability.
- The cuttlefish bone is composed primarily of aluminium oxide that also contains a small percentage of iron oxide and silicon dioxide.
- Rubies and sapphires are various forms of aluminium oxide in corundum that owe their color to slight variations in their chemical composition.
- Crush-resistant aluminium oxide is widely used in the production of body and vehicular armor due to its significant strength-to-weight ratio.
- In its crystalline form, aluminium oxide is known as corundum which is also one of the naturally occurring mineral-based forms that are more resistant to scratching.