Sapphire Could Make Coal More Energy Efficient
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Only diamond is harder than sapphire.That's why sapphire is being tested as a sensor that could relay critical information about extreme conditions present during gasification, the process of heating coal until it becomes a gas.
link :http://news.discovery.com/tech/sapphire-sensor.html
link :http://news.discovery.com/tech/sapphire-sensor.html
