Before revision: For example, gold and silver form an alloy in which the proportions of gold or silver can be varried ; titanium and silicon form an alloy TiSi2 in which the ratio of the two components is fixed (also known as an intermetallic compound).
After revision: For example, gold and silver form an alloy in which the proportions of gold or silver can be varied ; titanium and silicon form an alloy TiSi2 in which the ratio of the two components is fixed (also known as an intermetallic compound).