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

Steigerwald T, Alt N, Hertweck B, Schlücker E (2014)


Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Publisher: Wiley-VCH Verlag

Book Volume: 37

Pages Range: 1903-1906

Journal Issue: 11

DOI: 10.1002/ceat.201300719

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.

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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 & Technology, 37(11), 1903-1906. https://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 & Technology 37.11 (2014): 1903-1906.

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