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Silica or silicon
Some years ago the Sunday Times carried an article about internal combustion engines being made from simple sand one day. Where did that lead to?
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I presume "made from sand" means that they would use sand as the basis to manufacture the engines from silica ceramics such as silicon carbide or silicon nitride.
Silicon ceramics in a humid oxidising atmosphere (such as during fuel-air combustion in internal combustion engines) are prone to converting to the more thermodynamically stable oxide state (ultimately silicon dioxide, which is glass or sand).
http://www.ultrahardmaterials.co.uk/engine.htm l
Silicon ceramics in a humid oxidising atmosphere (such as during fuel-air combustion in internal combustion engines) are prone to converting to the more thermodynamically stable oxide state (ultimately silicon dioxide, which is glass or sand).
http://www.ultrahardmaterials.co.uk/engine.htm l
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