A significant advance Scientists create diamonds in just 150 minutes

Natural diamonds take billions of years to form under extreme pressures and temperatures deep in the earth, but an innovative new method allows synthetic diamonds to be produced within minutes.

The method utilizes a mixture of liquid metals, which scientists say formed diamonds in 150 minutes at temperatures of 1025 degrees Celsius and 1 atmosphere (standard pressure units), which is equivalent to the pressure felt at sea level (tens of atmospheres). It was very successful. less than 1,000). twice the pressure normally required).

Scientists at South Korea’s Institute of Basic Science said they were confident that the process could be scaled up to bring about a major change in the production of synthetic diamonds.

They explained that dissolving carbon in liquid metal to make diamonds is not entirely new, as General Electric developed the seminal process using molten iron sulfide half a century ago.

However, these processes still require pressures of 5 to 6 gigapascals and a diamond “seed” for the carbon to attach to.

The research team was able to reduce the pressure velocity by using a mixture of liquid metals such as gallium, iron, nickel, and silicon. He designed a system within a shell of graphite (a type of carbon and diamond) to heat and cool a metal mixture very rapidly while it was exposed to a mixture of methane and hydrogen.

This process helps carbon atoms diffuse from methane into the molten metal, where they act as seeds for the diamond. After just 15 minutes, small pieces of diamond crystals emerged from the liquid metal.

“Direct modification could contribute to the production of diamonds over very large areas, using larger surfaces or interfaces,” the scientists said.

Although research into this process is still in its early stages, the authors of the new study believe it has a lot of potential and that other liquid metals could be combined to obtain similar materials.

If this new method fulfills its potential, diamond production will become faster and easier.

The study was published in the journal Nature.

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