Zobrazeno 1 - 10
of 6 553
pro vyhledávání: '"Micro raman"'
Autor:
Harsha Kozhakkattil, Deepak Gavali, Arunima Jinachandran, Rajapandiyan Panneerselvam, Sheela Singh, Ranjit Thapa, VinodKumar G.S.
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 5311-5321 (2024)
Silver and its alloys undergo tarnishing with time, which is a black stain on the surface due to the formation of Ag2S. Developing a tarnish resistant Ag alloy was attempted by alloying Ag with elements that form a passive oxide layer on the surface.
Externí odkaz:
https://doaj.org/article/4fe66f8ab42046e0adbb7cfe00d03320
Autor:
Sara Calandra, Emma Cantisani, Claudia Conti, Barbara Salvadori, Serena Barone, Lucia Liccioli, Mariaelena Fedi, Teresa Salvatici, Andrea Arrighetti, Fabio Fratini, Carlo Alberto Garzonio
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract The overarching challenge of this research is setting up a procedure to select the most appropriate fraction from complex, heterogeneous materials such as historic mortars in case of radiocarbon dating. At present, in the international commu
Externí odkaz:
https://doaj.org/article/72a9c229048140c6a73b478e281bfbba
Publikováno v:
Heliyon, Vol 10, Iss 21, Pp e39779- (2024)
Microplastics up to 20 μm are recognized as having the highest potential to cause significant impacts on aquatic environments. Current methods face challenges in detecting and chemically characterizing small microplastics in freshwater systems. In t
Externí odkaz:
https://doaj.org/article/c17e2a2b43d447998d3855b02bc91d02
Autor:
Luis Filipe Vieira Ferreira, Ana Olaio, Manuel Francisco Costa Pereira, Isabel Luisa Ferreira Machado
Publikováno v:
Colorants, Vol 3, Iss 2, Pp 111-124 (2024)
The ceramic pastes of ca. 31 samples recovered from the Almaraz archaeological site, located in the south bench of Tagus River, were studied in detail using XRF, micro-Raman and GSDR spectroscopies, as well as the XRD technique. The ceramic sherds co
Externí odkaz:
https://doaj.org/article/367b6e9e69c643a686fb3f4aa767fca9
Publikováno v:
Heritage, Vol 7, Iss 5, Pp 2217-2238 (2024)
Ceramic sherds from approximately 20 samples of lead-glazed tableware, recovered from diverse archaeological sites, including three repurposed storage pits transformed into dumpsters within the medieval city of Santarém (13th–14th century), underw
Externí odkaz:
https://doaj.org/article/c6c38e7b749f43be82bfe228c79e2433
Akademický článek
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Akademický článek
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Akademický článek
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Autor:
Huiwei Xu, Liya Guo, Jie Hu, Long Chen, Yulong Han, Bo Lu, Hongshan Zhao, Jiaxin Bai, Xicheng Wei, Han Dong
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 2280-2289 (2024)
In this study, the effect of rare earth (RE) alloying on the rust formed on N80 steels was investigated with in-situ micro-Raman spectroscopy and optical microscopy. Under potentiostatic tests at potentials representing accelerated conditions, there
Externí odkaz:
https://doaj.org/article/28c0ab178e8c4f93a44357806c104f5f
Publikováno v:
Solid Earth Sciences, Vol 8, Iss 4, Pp 295-304 (2023)
Serpentines are geologically important minerals, and antigorite (Atg), lizardite (Lz) and chrysotile (Ctl) are the three key varieties. Their quick and accurate identification with micro-Raman spectroscopy requires to consider the effects of differen
Externí odkaz:
https://doaj.org/article/f8b3adc5f7304e279935fcc06d757979