The word "alumina" is correct and usable in written English.
Alumina is a type of white, powdery compound made from aluminum oxide, so it can be used to refer to that compound specifically. For example: The lab technician ordered a shipment of alumina for the upcoming experiment.
Three out of its four main businesses are now headed by women (including the bauxite and alumina business).
China relies on expensive imported alumina, the refined version of bauxite, the ore from which aluminium is made.
But so was the fear Vietnam would be stuck exporting its relatively cheap alumina yield to China.
On August 8th, after a 22-month delay, India's Supreme Court gave the Indian arm of Vedanta Resources, a metals and minerals giant, permission to mine the ore, which will feed the firm's alumina refinery nearby.
But a bigger factor these days is the raw material, alumina.
In 2014 the government banned the export of some raw minerals in a disastrous effort to ramp up domestic smelting; exports of bauxite collapsed from 55m to 500,000 tonnes within a year, without any concomitant rise in alumina or aluminium exports.Local-content laws abound, covering energy, retailing and carmaking, among other sectors.
The researchers worked with sodium beta-alumina in its liquid form, which enabled them to spread it easily onto a surface in precisely the pattern required for a printed circuit.
Researchers have now found that it can also be used to build transistors that are transparent and hence suitable for use in electronic books and head-up displays.Sodium beta-alumina was discovered in the 19th century when the process of extracting aluminium from its ore, bauxite, was being developed.
Now a team of researchers led by Howard Katz of Johns Hopkins University, in Baltimore, has discovered that sodium beta-alumina has other interesting electrical properties which make it suitable for building transistors.In this section The skeleton of water Holy shit!
When they heated it to 400°C, it turned into a solid, transparent film.Dr Katz has now used sodium beta-alumina to build transistors on both glass substrates and flexible, plastic ones.
When they heated it to 400ºC, it turned into a solid, transparent film.Dr Katz has now used sodium beta-alumina to build transistors on both glass substrates and flexible, plastic ones.
