Cooking up superhard diamonds

Popping diamonds into a high-pressure oven can make these hard minerals even harder.

By Sorcha McDonagh, 00:00 AM March 2, 2004

Diamonds are more than just sparkling gems. They also happen to be one of the hardest materials on Earth.

 

Now, scientists have found a way to make diamonds even harder by cooking them under pressure with lots of heat. Using the new technique, Russell J. Hemley of the Carnegie Institution of Washington and his colleagues claim that they have made the hardest diamond crystal ever tested.

 

 

 

 

 

 

 

 

 

 

 

 

 

When exposed to high heat and pressure, diamonds become extremely hard.

 

When exposed to high heat and pressure, diamonds become extremely hard.

 

Carnegie Institution

 

Al...

Source URL: https://student.societyforscience.org/article/cooking-superhard-diamonds