Abstract
IN our studies on the growth of iron sulphides in an inert gas, we synthesised a new crystal form of iron sulphide having a cementite-type structure. The method was the following: a fine powder of synthetic troilite (Fe1.0S) was flash evaporated in 99.99% pure argon gas at 100 mmHg, and passed into a vacuum chamber initially at a pressure of 10−6 mmHg. A thin film was obtained on some water-cooled microgrids 10 mm from the evaporation source (1,900 °C) and was examined in a Hitachi HU-11D electron microscope equipped with the model HXA-1 electron probe microanalyser (with mica as dispersing crystal).
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References
Powder Diffraction File, ASTM No. 23–1112, published by the Joint Committee on Powder Diffraction Standards.
Pedersen, B., and Grønvold, F., Acta Crystallogr., 12, 1022 (1959).
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OSAKA, T., NAKAZAWA, H. Cementite structure for iron sulphide, Fe3S. Nature 259, 109–110 (1976). https://doi.org/10.1038/259109a0
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DOI: https://doi.org/10.1038/259109a0
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