Sat January 14, 2012 By: Ruchi Soni

explain why graphite is used as lubricant and diamond is used as abrasive ?

Expert Reply
Sun January 15, 2012

The graphite is made up of layers or sheets and with a solvent absorbed in between these layers they can slip over each other, thus creating the lubricant effect. The diamond is amongst one of the hardest materials we know because the carbon is bound very well to each other. Thus it can cut other things and be a drill.

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