A research team in China developed the world's toughest glass material that can easily leave deep scratches on the surface of diamonds.
The glass is temporarily given the name AM-III. In a preprinted research article, scientists from China, the United States (US), Sweden, Germany and Russia detail what they call "ultrahard, ultrastrong, semiconductor" synthetic carbon.
The team says the material, known as an amorphous material (AM) or what it calls 'glass', is the hardest of its kind ever found.
A preprint of the article is available online and published in the journal National Science Review on Thursday
Samples of C60 were taken and placed under a pressure of 25 gigapascals (GPa).
This equates to more than 246,000 times more pressure than standard atmospheric pressure. Then, the sample is heated to over 1,000 degrees Celsius.
At the temperature milestones of 1,000, 1,100, and 1,200, three different categories of materials were created, called AM-I, AM-II, and AM-III. Reporting from Newsweek, this third material, AM-III, has the highest hardness of about 113 GPa, measured using the Vickers hardness method.
Scientists say that natural single-crystal diamond planes have a hardness of about 62 GPa by comparison.
According to the researchers, the glass material does not look as attractive as jewelry, but it has some wide applications in the high-tech industry. When used as a bullet-proof glass material, AM-III is 20 to 100 times tougher than mainstream products currently used.
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