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The growth of large diamond crystals

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Abstract

Large diamond crystals up to 6 mm in average diameter may be grown at high pressures (55–60 kbar) and temperatures (1400–1500 °C) by causing diamond to dissolve in a molten catalyst metal (Fe, Ni, Co, etc.) in a hot region and deposit upon a seed crystal in a slightly cooler region. Several days are required to produce a high quality single crystal. The process can be controlled to produce different kinds of diamonds whose properties have been studied.

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Authors and Affiliations

  1. Inorganic and Structures Branch Physical Chemistry Laboratory of the General Electric Company, Corporate Research and Development, 12301, Schenectady, New York, USA

    H. M. Strong & R. H. Wentorf Jr.

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  1. H. M. Strong
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  2. R. H. Wentorf Jr.
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Strong, H.M., Wentorf, R.H. The growth of large diamond crystals. Naturwissenschaften 59, 1–7 (1972). https://doi.org/10.1007/BF00594616

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  • DOI: https://doi.org/10.1007/BF00594616

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