aluminium oxide

British

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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A nanoscale 'ink' coating of aluminium oxide on metal halide perovskite improves the potential of this emerging photovoltaic technology and stabilises the drop in energy output which currently plagues perovskite technology.

From Science Daily • Sep. 20, 2023

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.

From BBC • May 12, 2022

So engineers decided to coat the tubes with aluminium oxide to reflect sunlight and keep them beneath that 60 °C threshold.

From Nature • Jan. 17, 2017

Note: Sapphires can also be yellow, purple, orange or green – different compositionally from emeralds – while red aluminium oxide is a ruby.

From Forbes • Jul. 25, 2014

In what respects does aluminium oxide differ from calcium oxide in properties?

From An Elementary Study of Chemistry by McPherson, William

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