Alumina (Aluminium Oxide) is the most widely used oxide ceramic material. Its applications are widespread, and include spark plugs, tap washers, abrasion resistant tiles, and cutting tools. Very large ...

Sapphire gemstones are naturally occurring, often alongside another form of pure aluminium oxide, ruby. The colour differences ... In medical applications the fine microstructure, load bearing ...

A couple of months from now these will be back on the shelf Two hundred years ago, no-one knew aluminium existed. Today it is everywhere - in cans, window frames, packaging, even car bodies.

Ateneo-led team develop low-cost, green way to produce transparent aluminium oxide A team of Filipino-Japanese researchers pulled a chemistry magic trick — by sprinkling microdroplets of acid on ...

Adding water to the mix produces aluminium oxide or hydroxide and hydrogen – lots of it. “Ours does it to nearly 100 per cent efficiency in less than 3 minutes,” says team leader Scott Grendahl.

The Bayer process, invented by Austrian chemist Karl Josef Bayer in 1888, is widely used to refine bauxite into smelting-grade alumina, or aluminium oxide – the precursor to aluminium.

They also proposed adding aluminium, alumina (aluminium oxide) and bauxite (the principle aluminium ore) to the list of strategic raw materials. Bauxite was already among 34 "critical raw ...

Save guides, add subjects and pick up where you left off with your BBC account. Aluminium is more reactive than carbon so it must be extracted from its compounds using electrolysis. Even though ...

Two hundred years ago, no-one knew aluminium existed. Today it is everywhere - in cans, window frames, packaging, even car bodies. New uses for it are constantly being discovered - but it's ...