aluminium oxide

noun

1. Also called: alumina. a white or colourless insoluble powder occurring naturally as corundum and used in the production of aluminium and its compounds, abrasives, glass, and ceramics. Formula: Al 2 O 3 See also activated alumina

Example Sentences

After 3 hours, the aluminium had reacted with the cathode material and produced a mixture of insoluble aluminium oxides, as well as metallic cobalt and water-soluble lithium oxides.

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The electrolysis process, is energy intensive - electricity is used in the extraction of aluminium from aluminium oxide, which itself comes from the aluminium ore, or bauxite, mined out of the ground.

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The key advance is the hemispherical retina: a dense array of light-sensitive nanowires held in the pores of an aluminium oxide membrane.

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Conventionally, it was difficult to produce anything more than 50% using FT synthesis, in a process usually based on iron or cobalt catalysts supported on silica or aluminium oxide.

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It’s a two-step process: refine aluminium oxide powder from bauxite ore and then convert it to aluminium in smelters.

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