Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Klaus-Dieter Grevel"'
Autor:
Klaus-Dieter Grevel, Juraj Majzlan, Artur Benisek, Franziska Emmerling, Hannes Herzel, Christian Adam, Edgar Dachs
Publikováno v:
Journal of Materials Science. 55:8477-8490
Calcium alkali phosphates Ca(Na,K)PO4 are main constituents of bioceramics and thermochemically produced phosphorus fertilizers because of their bioavailability. Sparse thermodynamic data are available for the endmembers CaNaPO4 and CaKPO4. In this w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fc9020ef478892e6bb9006f800ba9cf
https://doi.org/10.1007/s10853-020-04615-5
https://doi.org/10.1007/s10853-020-04615-5
Publikováno v:
Cement and Concrete Research. 116:89-94
Some thermodynamic properties of calcium aluminate monocarbonate hydrate (3CaO⋅Al2O3⋅CaCO3⋅10.7H2O), a typical hydration product of cement were determined in this study. This includes enthalpy ΔfH° = −8166.4 ± 7.7 kJ/mol, standard entropy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc1a053df6402801f4ad6ce97e594a89
https://doi.org/10.1016/j.cemconres.2018.10.012
https://doi.org/10.1016/j.cemconres.2018.10.012
Autor:
Stan Roozen, Vincent J. van Hinsberg, Edgar Dachs, Artur Benisek, Klaus-Dieter Grevel, Dominic H. Ryan, Sergey Bud'ko
Publikováno v:
Goldschmidt Abstracts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b1b34c3eb4e979dae455bb437bed1f2
https://doi.org/10.46427/gold2020.2223
https://doi.org/10.46427/gold2020.2223
Autor:
Horst-Michael Ludwig, Juraj Majzlan, Frank Bellmann, Edgar Dachs, A. Benisek, Klaus-Dieter Grevel
Publikováno v:
Cement and Concrete Research. 152:106621
One major component of Portland cement clinker is Ca2SiO4 (C2S, belite). Synthetic samples of three polymorphs, β-C2S (larnite), γ-C2S (calcio olivine), and x-C2S were investigated by high-temperature oxide melt solution calorimetry at 700 °C to o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08e31a7b942400ebd5e7ba55cf1ff6ae
https://doi.org/10.1016/j.cemconres.2021.106621
https://doi.org/10.1016/j.cemconres.2021.106621
Autor:
Edgar Dachs, Artur Benisek, Boris Kiefer, Ulla Gro Nielsen, Michel B. Johnson, Elisabeth Grube, Klaus-Dieter Grevel, Mary Anne White, Juraj Majzlan
Publikováno v:
Majzlan, J, Grevel, K D, Kiefer, B, Nielsen, U G, Grube, E, Dachs, E, Benisek, A, White, M A & Johnson, M B 2017, ' Thermodynamics and crystal chemistry of rhomboclase, (H 5 O 2 )Fe(SO 4 ) 2 ·2H 2 O, and the phase (H 3 O)Fe(SO 4 ) 2 and implications for acid mine drainage ', American Mineralogist, vol. 102, no. 3, pp. 643-654 . https://doi.org/10.2138/am-2017-5909
The system Fe2O3-SO3-H2O contains the most important minerals of acid mine drainage (AMD), iron oxides, and iron sulfates. For geochemical modeling of the AMD systems, reliable thermodynamic data for these phases are needed. In this work, we have det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef0ae45ca2bd7a4a343823328f62e26d
https://doi.org/10.2138/am-2017-5909
https://doi.org/10.2138/am-2017-5909
Autor:
Juraj Majzlan, Jacob Schliesser, Jiří Sejkora, Martin Števko, Arne H. Zittlau, Klaus-Dieter Grevel, Jakub Plášil, Martin Chovan, Brian F. Woodfield, Stanislava Milovská, Edgar Dachs
Publikováno v:
The Canadian Mineralogist. 53:937-960
The thermodynamic properties of libethenite [Cu 2 (PO 4 )(OH)], olivenite [Cu 2 (AsO 4 )(OH)], pseudomalachite [Cu 5 (PO 4 ) 2 (OH) 4 ], cyanochroite [K 2 Cu(SO 4 ) 2 · 6H 2 O], krohnkite [Na 2 Cu(SO 4 ) 2 · 2H 2 O], and devilline [CaCu 4 (SO 4 ) 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b3f73d27fb54dcb5f416a24a8ee5d79
https://doi.org/10.3749/canmin.1400066
https://doi.org/10.3749/canmin.1400066
Autor:
Julia Herrmann, Klaus-Dieter Grevel, Jens Kirste, Juraj Majzlan, Christian Lathe, Bernd Marler, Felix Wiethoff
Publikováno v:
Physics and Chemistry of Minerals
The P-V-T behavior of FeO(OH) and MnO(OH) has been determined under high pressure and high temperature up to 7.5 GPa and 500 °C using a MAX 80 cubic anvil high-pressure apparatus. The samples, synthetic goethite, α-FeO(OH), respectively, a natural
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c86148188e0d645c304d75707262b715
https://gfzpublic.gfz-potsdam.de/pubman/item/item_2730892
https://gfzpublic.gfz-potsdam.de/pubman/item/item_2730892
Autor:
A. Dominic Fortes, Artur Benisek, Klaus-Dieter Grevel, Edgar Dachs, Juraj Majzlan, Michael Steiger, Bernd Marler
Publikováno v:
Astrobiology. 12:1042-1054
The enthalpies of formation of synthetic MgSO(4)·4H(2)O (starkeyite) and MgSO(4)·3H(2)O were obtained by solution calorimetry at T=298.15 K. The resulting enthalpies of formation from the elements are [Formula: see text] (starkeyite)=-2498.7±1.1 k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acef167d1bfb108f74b5832b85f8a60d
https://doi.org/10.1089/ast.2012.0823
https://doi.org/10.1089/ast.2012.0823
Publikováno v:
American Mineralogist. 97:1299-1313
In spite of the amount of research that has been done on grossular, Ca3Al2Si3O12, there is still uncertainty regarding its exact thermodynamic properties. Because of insufficient sample characterization in the various published calorimetric studies,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::695586080a91d578f17abc92063277d4
https://doi.org/10.2138/am.2012.4047
https://doi.org/10.2138/am.2012.4047
Autor:
Juliana Boerio-Goates, Juraj Majzlan, Wolf-Achim Kahl, Klaus-Dieter Grevel, Brian F. Woodfield, Jakub Plášil, Petr Drahota, Michal Filippi
Publikováno v:
Hydrometallurgy. :47-56
Iron arsenates, either well or poorly crystalline, are the usual phases of choice for arsenic immobilization in waste forms of variable origin. Among these phases, scorodite (FeAsO 4 ·2H 2 O) is used very often because of its favorable properties. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09c3d14d6457fe0a5d1f8ce21ac03432
https://doi.org/10.1016/j.hydromet.2012.02.002
https://doi.org/10.1016/j.hydromet.2012.02.002