Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Christopher Giehl"'
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Akademický článek
Microstructural effects on hardness and optical transparency of birefringent aluminosilicate nanoceramics
Autor: Nico A. Gaida, Norimasa Nishiyama, Oliver Beermann, Ulrich Schürmann, Atsunobu Masuno, Christopher Giehl, Ken Niwa, Masashi Hasegawa, Shrikant Bhat, Robert Farla, Lorenz Kienle
Publikováno v: International Journal of Ceramic Engineering & Science, Vol 2, Iss 2, Pp 76-82 (2020)
Abstract Transparent nanoceramics, synthesized at extreme conditions of high pressure and temperature, are new classes of materials highly attractive for photonic applications, such as optical windows, which require additional increased hardness and
Externí odkaz: https://doaj.org/article/718c889e5f8c4c1a94c0ffbd1b5b7491
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2
Microstructural effects on hardness and optical transparency of birefringent aluminosilicate nanoceramics
Autor: Christopher Giehl, Oliver Beermann, Nico Alexander Gaida, Atsunobu Masuno, Robert Farla, Norimasa Nishiyama, Lorenz Kienle, Ken Niwa, Masashi Hasegawa, Shrikant Bhat, Ulrich Schürmann
Publikováno v: International Journal of Ceramic Engineering & Science, Vol 2, Iss 2, Pp 76-82 (2020)
International journal of ceramic engineering & science 2(2), 76-82 (2020). doi:10.1002/ces2.10036
'International Journal of Ceramic Engineering & Science ', vol: 2, pages: 76-82 (2020)
International journal of ceramic engineering & science 2(2), 76 - 82 (2020). doi:10.1002/ces2.10036
Transparent nanoceramics, synthesized at extreme conditions of high pressure and temperature, are new classes of materials highly attractive for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f6f3742e4a6a2740ae42d334dbbaaed
https://doaj.org/article/718c889e5f8c4c1a94c0ffbd1b5b7491
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3
On the State and Stability of Fuel Cell Catalyst Inks
Autor: Shalmali Bapat, Michael Schäffler, Christopher Giehl, Volker Peinecke, Sebastian Kohsakowski, Doris Segets
Catalyst layers (CL), as an active component of the catalyst coated membrane (CCM), form the heart of the proton electrolyte membrane fuel cell (PEMFC). For optimum performance of the fuel cell, obtaining suitable structural and functional characteri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e376676f1bb9fb429f7d6d8e76338424
https://doi.org/10.26434/chemrxiv.13125401.v4
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Combined LA-ICP-MS microanalysis of iodine, bromine and chlorine in fluid inclusions
Autor: Johan R. Fredriksson, Oliver Beermann, Dieter Garbe-Schönberg, Thomas Wagner, Tobias Fusswinkel, Lea Scholten, Christopher Giehl
Publikováno v: Journal of Analytical Atomic Spectrometry. 33:768-783
Halogens are excellent tracers of hydrothermal fluid sources in sedimentary, magmatic, metamorphic and ore-forming environments. In situ LA-ICP-MS analysis of Cl and Br in single fluid inclusions has provided fundamentally new insight into the proces
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb597292aa4f64a66d9582b742345731
https://doi.org/10.1039/c7ja00415j
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Transparent polycrystalline nanoceramics consisting of triclinic Al2 SiO5 kyanite and Al2 O3 corundum
Autor: Christopher Giehl, Ulrich Schürmann, Atsunobu Masuno, Norimasa Nishiyama, Tetsuo Irifune, Astrid Holzheid, Nico Alexander Gaida, Lorenz Kienle, Oliver Beermann, Jozef Bednarcik, Eleonora Kulik, Hiroaki Ohfuji
Publikováno v: Journal of the American Ceramic Society. 101:998-1003
Transparent polycrystalline nanoceramics consisting of triclinic Al2SiO5 kyanite (91.4 vol%) and Al2O3 corundum (8.6 vol%) were fabricated at 10 GPa and 1200-1400°C. These materials were obtained by direct conversion from Al2O3-SiO2 glasses fabricat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::775178c6bdadb21afb65fd1a7d0bb354
https://doi.org/10.1111/jace.15281
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An experimental simulation of volcanic ash deposition in gas turbines and implications for jet engine safety
Autor: Marcus Nowak, Christopher Giehl, Richard A. Brooker, Holger Marxer
Publikováno v: Giehl, C, Brooker, RA, Marxer, H & Nowak, M 2016, ' An experimental simulation of volcanic ash deposition in gas turbines and implications for jet engine safety ', Chemical Geology . https://doi.org/10.1016/j.chemgeo.2016.11.024
The protracted grounding of commercial aircraft throughout Europe due to the Eyjafjallajokull volcanic eruption in Iceland April 2010, has alerted the public to the potential dangers of aircraft encounters with ash clouds. One of the most serious iss
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b9deec93b7412332b163bae7d13411b
https://doi.org/10.1016/j.chemgeo.2016.11.024
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9
Synthesis of Al 2 O 3 /SiO 2 nano‐nano composite ceramics under high pressure and its inverse Hall–Petch behavior
Autor: Jozef Bednarcik, Oliver Beermann, Norimasa Nishiyama, Christin Szillus, Astrid Holzheid, Nico Alexander Gaida, Lorenz Kienle, Christopher Giehl, Ulrich Schürmann, Hiroaki Ohfuji, Eleonora Kulik, Atsunobu Masuno
Publikováno v: Journal of the American Ceramic Society. 100:323-332
We report the synthesis of alumina/stishovite nano–nano composite ceramics through a pressure-induced dissociation in Al2SiO5 at a pressure of 15.6 GPa and temperatures of 1300°C–1900°C. Stishovite is a high-pressure polymorph of silica and the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47acffd43aa37a3150f98796058d2077
https://doi.org/10.1111/jace.14551
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10
Phase relations and liquid lines of descent of an iron-rich peralkaline phonolitic melt: an experimental study
Autor: Christopher Giehl, Marcus Nowak, Michael A.W. Marks
Publikováno v: Contributions to Mineralogy and Petrology. 165:283-304
We experimentally investigated the phase rela- tions of a peralkaline phonolitic dyke rock associated with the Ilimaussaq plutonic complex (South Greenland). The extremely evolved and iron-rich composition (magnesium number = 2, alkalinity index = 1.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::367c52feb61c55e7cfe152f75a5c1fba
https://doi.org/10.1007/s00410-012-0809-6
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