Diamond can be melted into a liquid phase under specific high pressure and temperature conditions

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Diamond melts into a liquid carbon phase under specific high-pressure and high-temperature conditions near the carbon triple point, as supported by thermodynamic and molecular simulation studies.

The analysis

The claim states that diamond can be melted into a liquid phase under specific high pressure and temperature conditions. Papers [0] and [11] discuss the carbon phase diagram, the graphite-diamond-liquid triple point, and melting/crystallization behavior of carbon, directly supporting the scientific consensus that liquid carbon exists at high pressures and temperatures. Therefore, the claim is supported.

Evidence for · 2

Liquid-liquid phase transformations and the shape of the melting curve

Recorded source metadata

G. Makov, E. Yahel. Liquid-liquid phase transformations and the shape of the melting curve. 2011. https://doi.org/10.1063/1.3593441

Discusses the phase diagram of carbon and liquid-liquid phase transformations, implicitly referencing the melting behavior and triple point of carbon.

Source citation format

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More for · 1

Metastability and Ostwald step rule in the crystallisation of diamond and graphite from molten carbon.

Recorded source metadata

Donadio D, Berrens ML, Zhao W, Chen S, Li T. Metastability and Ostwald step rule in the crystallisation of diamond and graphite from molten carbon.. 2025. https://doi.org/10.1038/s41467-025-61674-5

Investigates the crystallization and melting mechanisms of diamond and graphite from molten carbon near the triple point using molecular simulations and phase diagrams.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 8401 Aug 2026

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