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There's a very good reason to use sapphire: since it has a (slightly) lower hardness than diamond, you can cut it into sheets with a diamond saw. Sapphire stil

There's a very good reason to use sapphire: since it has a (slightly) lower hardness than diamond, you can cut it into sheets with a diamond saw. Sapphire still has a very high hardness, much better than glass of any sort.

46Bit 14y ago
If we fast forward 20 years, I wonder if we could be a graphene 'sawing' diamond?
- Xcelerate 14y ago
  Graphene's just a one atom thick sheet of graphite ;) (Source: I research graphene.)
  - 46Bit 14y ago
    Given that much of Graphite's weakness is due to sliding sheets, I was under the impression a single sheet would be far stronger?