Abstract
Chemical and X-ray investigation of the reaction of carbon monoxide with iron nitrides and of the reaction of ammonia with iron carbides discloses the existence of iron carbonitrides— a series of new ternary interstitial alloys containing iron, carbon and nitrogen. ζ-phase carbonitrides, with structures similar to those of ζ-iron nitrides, have a range of homogeneity extending approximately from Fe 8 N 4 to Fe 8 C 3 N. The latter is isomorphous with Fe 2 N. Є-phase carbonitrides, which are isomorphous with Є-iron nitrides, have a composition range of approximately 25 to 33 atomic % nitrogen plus carbon, i.e. from Fe 3 X to Fe 2 X , in which the higher carbon concentration limit is not less than 16 atomic %. Probable phase fields for part of the iron-carbon-nitrogen system are given on a ternary diagram. Prolonged reaction of carbon monoxide with iron nitrides results in complete elimination of nitrogen. Below 500° C the product is a carbide of iron, now called iron percarbide, the narrow composition range of which includes Fe 20 C 9 . Above 500° C the product of the same reaction is cementite.
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Dates
Type | When |
---|---|
Created | 18 years, 8 months ago (Dec. 18, 2006, 5:35 p.m.) |
Deposited | 4 years, 6 months ago (Feb. 18, 2021, 6:10 p.m.) |
Indexed | 3 months, 1 week ago (May 21, 2025, 5:09 p.m.) |
Issued | 76 years, 9 months ago (Nov. 12, 1948) |
Published | 76 years, 9 months ago (Nov. 12, 1948) |
Published Online | 28 years, 8 months ago (Jan. 1, 1997) |
Published Print | 76 years, 9 months ago (Nov. 12, 1948) |
@article{1948, volume={195}, ISSN={2053-9169}, url={http://dx.doi.org/10.1098/rspa.1948.0101}, DOI={10.1098/rspa.1948.0101}, number={1040}, journal={Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences}, publisher={The Royal Society}, year={1948}, month=nov, pages={41–55} }