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C1.3 Glossary

Metals and Their Uses Glossary

What is an alloy? A mixture of metals (and sometimes non-metals) e.g. Brass is a mixture of copper and zinc.
What is brass? An alloy of copper and zinc.
Describe the properties of aluminium and what it is use for. A low density, corrosion resistant metal use in many alloys, including those used in the aircraft industry.
What is bioleaching? The process of extracting metals from low grade ores using micro-organisms.
What is a blast furnace used for? The blast furnace is the huge reaction vessel used in industry to remove iron from it’s ore.
What is carbon steel? Alloy of iron containing small, controlled amounts, of carbon.
What is cast iron? The impure iron taken directly from the blast furnace.
What is a copper rich ore? A rock that contains a high proportion of a copper compound.
What is a high-alloy steel? An expensive alloy of iron mixed with relatively high proportions of other metals e.g. stainless steel which contains nickel and chromium along with the iron.
What is a low-alloy steel? An alloy of iron containing small amounts (1-5%) of other metals.
What is an ore? A rock which contains enough metal to make it economically viable to extract the metal.
What is oxidation? A reaction when oxygen is added to a substance (or electrons are lost)
What is phytomining? The process of extracting metals from low grade ores using plants.
What is the reactivity series? A list of elements in order of their reactivity. The most reactive element is put at the top of the list.
What is the process by which one element takes the place of another, less reactive element? Displacment/Displace.
What is meant by “displace”? When one element takes the place of another in a compound. For example iron + copper sulphate = iron sulphate + copper.
What is reduction? A reaction in which oxygen is removed (or electrons gained).
What is a shape metal alloy? A mixture of metals which responds to changes in temperature?
What is smelting? Heating a metal ore in order to extract its metal.
What is stainless steel? A chromium/ nickel alloy of iron which does not rust.
What is steel? An alloy of iron with small amounts of carbon or other metals, such as nickel or chromium, added.
What is titanium? A shiny, corrosion resistant, metal used to make alloys.
Created by: ChosenHill



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