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Why are diamonds useful in high-pressure research cells?

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high-pressure phenomena Three compression mechanisms in crystals.

Diamonds are essential in high-pressure research cells, such as the diamond-anvil cell, primarily due to their extreme strength and unique optical properties.

While diamond is renowned for being exceptionally strong, its utility in experimental physics is significantly enhanced by its transparency to a wide range of electromagnetic radiation. This includes visible light, infrared, ultraviolet, X-rays, and gamma rays.1

This transparency allows researchers to:
* Visually observe the effects of pressure on samples in real time.1
* Utilize various experimental techniques, such as X-ray diffraction, Raman spectroscopy, and Mössbauer spectroscopy, to analyze materials while they are under extreme pressure.1

By using a metal foil gasket to confine samples between two diamond faces, scientists can create a stable environment to study materials at pressures reaching hundreds of gigapascals, effectively simulating conditions found deep within the Earth.1