Aluminum oxide (Al2O3), also known as alumina, corundum, sapphire, or ruby, is one of the best insulators used in a wide range of applications: in electronic components, as a support material for ...

While the red color comes from the iron oxides present, there are a lot of other materials in it, some of which can be toxic. And the process of isolating the aluminum oxide leaves the material ...

Three "special" oxides – aluminum oxide, chromium oxide and silicon dioxide – can actually work to protect metal from further corrosion. So the MIT team set out to explore why this was the case.

Properties, uses and sources of the element aluminum. Also known as aluminium, the name was changed by the American Chemical Society in 1925.