Formation mechanism of (metastable) iron nitrides through in-situ neutron diffraction of solid-gas-reactions
In-situ neutron diffraction can provide valuable information on phase formation mechanisms in solid state. We have developed an in-situ neutron diffraction cell, suitable for studies of solid-gas reactions under flowing gas conditions at higher temperatures, for the study of metastable nitride formation. Experiments will be performed under flowing ammonia or argon. Heating will be realized by a laser heating system. The equipment was successfully tested within LTP-5A-1 in cooperation with Dr. Kohlmann (Univ. Saarland, Germany). An interesting system for in-situ measurements is Fe–N and the nitride phases therein due to its importance in different industrial processes, i.e., steel hardening. A comprehensive knowledge on the formation mechanisms of such materials will provide a successful approach for a customized synthesis.
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NIEWA Rainer; Thomas C. Hansen; Holger Kohlmann; KUNKEL Nathalie; NEY Christoph; REICHERT Christian; WENDEROTH Patrick and WIDENMEYER Marc. (2012). Formation mechanism of (metastable) iron nitrides through in-situ neutron diffraction of solid-gas-reactions. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-25-206
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