Thu. Jul 18th, 2024

Scientists have learned how to grow diamonds without huge pressure and temperature: why is it necessary

Natasha Kumar By Natasha Kumar Jun20,2024

Scientists have learned how to grow diamonds without enormous pressure and temperature: why is it necessary

Scientists are constantly developing new materials and improving the production technologies of existing ones. Diamond — a natural mineral characterized by strength and a wide range of uses. It is also formed over thousands of years in the earth's crust and is worth a lot.

Scientists learned how to synthesize diamonds, but this required great pressure and temperatures. For example, HPHT growth requires about 5 gigapascals of pressure. This is similar to the pressure in the Earth's upper mantle, where natural diamonds are formed, and also requires high temperatures — about 1400° Celsius. In such extreme conditions, carbon dissolves in liquid metal, which allows the formation of diamond crystals. However, presented a new way — the temperature of the formation of diamonds in it is lower, and the pressure is normal.

The process starts with liquid gallium, iron, nickel and silicon. The researchers then expose this liquid to carbon-rich methane as well as hydrogen. Carbon atoms dissolve in liquid. Now they are freely connected in the crystal structure of diamond. Physical chemist Rodney Ruoff from the Institute of Basic Science of the Center for Multidimensional Carbon Materials in South Korea worked on the research. He claims that only 1025°C is needed to form a diamond.

If the new technology becomes more common, diamonds can be grown without super-sophisticated equipment, and they could become cheaper. This is important, because diamonds are needed for science — they can perceive magnetic fields or are used in the search for subatomic particles.

Natasha Kumar

By Natasha Kumar

Natasha Kumar has been a reporter on the news desk since 2018. Before that she wrote about young adolescence and family dynamics for Styles and was the legal affairs correspondent for the Metro desk. Before joining The Times Hub, Natasha Kumar worked as a staff writer at the Village Voice and a freelancer for Newsday, The Wall Street Journal, GQ and Mirabella. To get in touch, contact me through my 1-800-268-7116

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