Glossary
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alloy |
n. a substance that is mainly a mixture of metals |
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alumina |
an oxide of aluminium |
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anneal |
to heat aluminium and alloys at a temperature which is sufficient either to fully or to partially soften the metal in readiness for rolling. Annealing helps to strengthen the metal. |
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aggregate |
broken stone, gravel etc used in road building and making concrete |
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atomic number |
the number of positive charges carried by the nucleus of an atom |
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bauxite |
a rock, the principal ore of aluminium, consisting mainly of aluminium oxide |
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flux |
a substance mixed with a metal etc to help fusion |
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ingot |
An ingot is up to 11 tonnes in weight, just over 500 mm thick, over 1600 mm wide and over 4500 mm long. |
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overburden |
unwanted material overlying aluminium ore |
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reduction cell |
smelting cell or pot |
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valency |
the combining power of an atom |
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