Jobs & Education1 min ago
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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