Výsledky vyhledávání - "Benjamin Hertweck"

Special Equipment for Ammonothermal Processes

Autor: Benjamin Hertweck, Eberhard Schlücker, Saskia Schimmel, Peter J. Wellmann

Publikováno v: Ammonothermal Synthesis and Crystal Growth of Nitrides ISBN: 9783030563042

As the ammonothermal method often requires technically challenging conditions such as high temperature, high pressure and reaction media that are rather corrosive towards most metals (see Chap. 11), the further development of ammonothermal process eq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::24e4ba6352f68a5d63afca17339dd066
https://doi.org/10.1007/978-3-030-56305-9_17

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High-temperature corrosion of Inconel®Alloy 718, Haynes®282®Alloy and CoWAlloy1&2 in supercritical ammonia/ammonium chloride solution

Autor: Eberhard Schluecker, Benjamin Hertweck, Lisa P. Freund, Thomas G. Steigerwald, Steven Griffiths, Mathias Göken, Steffen Neumeier, Anna-Carina L. Kimmel, Thomas F. Malkowski, James S. Speck

Publikováno v: Journal of Crystal Growth. 498:289-300

Corrosion of process equipment during ammonothermal synthesis at high temperature and pressure is still one of the big limitations of this process because of reduced crystal quality and safety issues. In this paper we present preliminary ammonotherma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::776ddcc69d7797c3b6d90def19916932
https://doi.org/10.1016/j.jcrysgro.2018.06.018

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In situ investigation of decomposing ammonia and ammonobasic solutions under supercritical conditions via UV/vis and Raman Spectroscopy

Autor: Thomas G. Steigerwald, Johannes Balouschek, Eberhard Schluecker, Anna-Carina L. Kimmel, Nicolas S. A. Alt, Benjamin Hertweck

Publikováno v: The Journal of Supercritical Fluids. 134:96-105

An optical cell was used in this work, which allows spectroscopic measurements of fluids up to 600 °C and 300 MPa. The maximum pressure reached in this work was 254 MPa and the internal cell temperature was a maximum of 563 °C at a heating temperat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::629fc936014cf0503a0eeabae40cee4c
https://doi.org/10.1016/j.supflu.2017.12.028

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Determination of GaN solubility in supercritical ammonia with NH4F and NH4Cl mineralizer by in situ x-ray imaging of crystal dissolution

Autor: Nicolas S. A. Alt, Thomas G. Steigerwald, Benjamin Hertweck, Peter J. Wellmann, Eberhard Schlücker, Ulrike Künecke, Saskia Schimmel, Theresia M. M. Richter, Rainer Niewa, Michael W. Lindner

Publikováno v: Journal of Crystal Growth. 418:64-69

Quantitative data on the solubility of GaN in supercritical ammonia using NH 4 F as mineralizer are reported. The solubility is determined by in situ x-ray imaging of the dissolution of GaN single crystals. First, solubility values obtained by this m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e85a960d534eea0eaf8d03533159b91
https://doi.org/10.1016/j.jcrysgro.2015.02.020

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Ceramic liner technology for ammonoacidic synthesis

Autor: Eberhard Schluecker, Peter J. Wellmann, Nicolas S. A. Alt, Saskia Schimmel, Thomas G. Steigerwald, Benjamin Hertweck

Publikováno v: The Journal of Supercritical Fluids. 99:76-87

The ammonoacidic crystal growth is a comprehensive method for the synthesis of novel compounds like nitrides or amindes but also for the growth of bulk single crystals like gallium or aluminum nitride for power electronics and photonics. In this repo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba03f3f76a049c8dfd2d03f0e5371817
https://doi.org/10.1016/j.supflu.2015.01.017

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