Zobrazeno 1 - 10
of 2 509
pro vyhledávání: '"Rietveld analysis"'
Autor:
Amalie P. Laursen, Jens P. Frandsen, Priyank Shyam, Mathias I. Mørch, Frederik H. Gjørup, Harikrishnan Vijayan, Mads R. V. Jørgensen, Mogens Christensen
Publikováno v:
Advanced Electronic Materials, Vol 10, Iss 9, Pp n/a-n/a (2024)
Abstract The synthesis of a strontium hexaferrite magnet is studied using in situ synchrotron powder X‐ray diffraction (PXRD) with a 16‐ms time resolution. The precursor material is cold compacted shape‐controlled goethite and strontium carbona
Externí odkaz:
https://doaj.org/article/5836fd885e664ebaa1066ae26f24a757
Publikováno v:
Heliyon, Vol 10, Iss 17, Pp e36648- (2024)
The ratio of Sr/Ca ions in marine biogenic minerals is considered advantageous for tracking geochemical and biomineralization processes that occur in the oceans. It is debatable, though, whether the ratio in biominerals such as coral skeleton is simp
Externí odkaz:
https://doaj.org/article/1f338fa7af7f42f5928e1aeb5d9bf960
Autor:
Lukman Ahmed Omeiza, Md. Mosfiqur Rahman, Kairat A. Kuterbekov, Asset Kabyshev, Kenzhebatyr Bekmyrza, Marzhan Kubenova, Mahendra Rao Somalu, Saifullah Abu Bakar, Abul Kalam Azad
Publikováno v:
Electrochemistry Communications, Vol 164, Iss , Pp 107730- (2024)
Solid oxide fuel cells (SOFCs) have emerged as promising energy conversion devices, offering high efficiency and environmental sustainability. Efficient electrode materials are crucial for the overall cell performance of SOFCs. Perovskite type Nd1-xS
Externí odkaz:
https://doaj.org/article/6ef892aa71c742d983bd0447ea192d85
Autor:
Bulanov Evgeny N., Vasileva Anastasyya A., Golitsyna Oxana N., Shvareva Alyona G., Knyazev Alexander V.
Publikováno v:
Journal of the Serbian Chemical Society, Vol 89, Iss 3, Pp 415-428 (2024)
Apatites, being one of the most numerous mineral-like families of compounds, are considered as a matrix for binding lead ions, which is dangerous for the biosphere. The crystal-chemical (composition, structure) and thermophysical aspects (thermal exp
Externí odkaz:
https://doaj.org/article/0cf4a35798af4ef89a623c4879a2c83b
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 47 (2024)
In the realm of cement production, traditional fuels are steadily giving way to alternative sources. While this shift yields economic and ecological advantages, it introduces notable technological challenges. Specifically, there is an escalation in c
Externí odkaz:
https://doaj.org/article/e2087fab51a34ba8b99aad757bb25c8f
Publikováno v:
Solids, Vol 4, Iss 1, Pp 87-93 (2023)
Complex perovskite La2(Al1/2MgTa1/2)O6 (LAMT) crystallizes in a monoclinic unit cell with space group P21/n at room temperature. Its B-site cations are ordered in a rock-salt-type arrangement. Previously, the full occupancy of Mg on the 2c-Wyckoff po
Externí odkaz:
https://doaj.org/article/2d9e6dd07be94f499171fbb5e6530f64
Autor:
L. Millán-García, G. Bokuchava, P. Halodova, A. Sáez-Maderuelo, G. González-Doncel, J.I. Hidalgo, J.M. Velasco, R. Fernández
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 1543-1558 (2023)
While it is known that the crucial requirement for investigating residual stresses using diffraction is the use of a reliable unstressed lattice parameter, the robustness of genetic programming to accomplish this task will be shown here. The paramete
Externí odkaz:
https://doaj.org/article/6e92869be3b34b07ae4f941536cd7cdb
Akademický článek
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Publikováno v:
Advanced Science, Vol 10, Iss 31, Pp n/a-n/a (2023)
Abstract In this study, Eu3+ and K+ co‐doped Ca3WO6 double perovskite, a high‐color‐purity red phosphor, is quantitatively investigated using synchrotron X‐ray diffraction Rietveld refinement, energy dispersive X‐ray spectroscopy, and high
Externí odkaz:
https://doaj.org/article/1734cb73023745899a10f0de24932770
Publikováno v:
Science and Technology of Advanced Materials: Methods, Vol 2, Iss 1, Pp 435-444 (2022)
Rietveld analysis necessitates the manual trial-and-error refinement of various parameters. To reduce human costs and resources, we have developed a robotic process automation (RPA) system for the Rietveld analysis program RIETAN-FP. By executing our
Externí odkaz:
https://doaj.org/article/51a0370c6789415196046c7ea8427cc0