Chemical stability of carbon-based inorganic materials for in situ x-ray investigations of ammonothermal crystal growth of nitrides

Journal article
(Original article)


Publication Details

Author(s): Schimmel S, Künecke U, Meisel M, Hertweck B, Steigerwald T, Nebel C, Alt N, Schlücker E, Wellmann P
Journal: Journal of Crystal Growth
Publisher: Elsevier
Publication year: 2016
Volume: 456
Pages range: 33-42
ISSN: 0022-0248
Language: English


Abstract


The chemical stability of diamond, silicon carbide, vitreous carbon, and boron carbide in supercritical ammonia containing different mineralizers was investigated. The materials were found to show good corrosion resistance in the presence of selective or all tested mineralizers.Diamond was found to be virtually inert in both ammonoacidic and ammonobasic reaction media.Silicon carbide showed good chemical stability in varying ammonothermal reaction media.The chemical stability of vitreous carbon was found to depend on its manufacturing temperature.Corrosion of boron carbide strongly depends on the mineralizer used as well as on applied mechanical stress.Based on their chemical stability and mechanical properties, the applicability of the materials in the respective ammonothermal reaction media as construction materials is evaluated. Additionally, the applicability of the materials as a window material for both high energy . in situ x-ray imaging and low energy . in situ x-ray diffraction is discussed.



FAU Authors / FAU Editors

Alt, Nicolas Dr.-Ing.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Hertweck, Benjamin
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Künecke, Ulrike Dr.-Ing.
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)
Schimmel, Saskia
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)
Schlücker, Eberhard Prof. Dr.-Ing.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Steigerwald, Thomas
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Wellmann, Peter Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)


How to cite

APA:
Schimmel, S., Künecke, U., Meisel, M., Hertweck, B., Steigerwald, T., Nebel, C.,... Wellmann, P. (2016). Chemical stability of carbon-based inorganic materials for in situ x-ray investigations of ammonothermal crystal growth of nitrides. Journal of Crystal Growth, 456, 33-42. https://dx.doi.org/10.1016/j.jcrysgro.2016.08.067

MLA:
Schimmel, Saskia, et al. "Chemical stability of carbon-based inorganic materials for in situ x-ray investigations of ammonothermal crystal growth of nitrides." Journal of Crystal Growth 456 (2016): 33-42.

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Last updated on 2018-19-04 at 03:40