Journal article
(Original article)


Corrosive degeneration of autoclaves for the ammonothermal synthesis: Experimental approach and first results


Publication Details
Author(s): Steigerwald T, Alt N, Hertweck B, Schlücker E
Publisher: Wiley-VCH Verlag
Publication year: 2014
Volume: 37
Journal issue: 11
Pages range: 1903-1906
ISSN: 1521-4125

Abstract

The ammonothermal growth of different bulk group III nitride materials enables cost-efficient production of high-quality single crystals. Despite its advantages this process is limited due to the corrosive ammonothermal environment. This environment consists of supercritical ammonia with acidic or basic additives at high temperatures and pressures in high-pressure cells made of a nickel-base alloy. As a consequence of corrosion, large amounts of metallic impurities are detectable in the grown crystals. The mechanisms of corrosion are not well understood. A method is presented to investigate corroded autoclaves, caused by the interaction with supercritical fluid, together with first results regarding the degeneration of autoclave material.



How to cite
APA: Steigerwald, T., Alt, N., Hertweck, B., & Schlücker, E. (2014). Corrosive degeneration of autoclaves for the ammonothermal synthesis: Experimental approach and first results. Chemical Engineering and Technology, 37(11), 1903-1906. https://dx.doi.org/10.1002/ceat.201300719

MLA: Steigerwald, Thomas, et al. "Corrosive degeneration of autoclaves for the ammonothermal synthesis: Experimental approach and first results." Chemical Engineering and Technology 37.11 (2014): 1903-1906.

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