Výsledky vyhledávání - "M, Enculescu"

Akademický článek

Influence of on-off pulsed current pattern on processes during spark plasma sintering of MgB2 superconductor

Autor: G. Aldica, V. Sandu, S. Popa, I. Pasuk, M. Enculescu, A.M. Ionescu, P. Badica

Publikováno v: Open Ceramics, Vol 16, Iss , Pp 100441- (2023)

High density samples (92–94.5 %) of MgB2 were prepared by Spark Plasma Sintering (SPS). The on-off pulsed current patterns of SPS processing were 8–4, 12–2, 24–2, 99–1. Patterns with more on pulses favor formation of a higher amount of the

Externí odkaz: https://doaj.org/article/2235f2814d6547afbf9ce6982f83cbfc

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Akademický článek

Mud and burnt Roman bricks from Romula

Autor: P. Badica, A. Alexandru-Dinu, M. A. Grigoroscuta, M. Burdusel, G. V. Aldica, V. Sandu, C. Bartha, S. Polosan, A. Galatanu, V. Kuncser, M. Enculescu, C. Locovei, I. Porosnicu, I. Tiseanu, M. Ferbinteanu, I. Savulescu, M. Negru, N. D. Batalu

Publikováno v: Scientific Reports, Vol 12, Iss 1, Pp 1-25 (2022)

Abstract Sesquipedalian mud and burnt bricks (second to third century AD) were excavated from the Roman city of Romula located in the Lower Danube Region (Olt county, Romania). Along with local soils, bricks are investigated by petrographic analysis,

Externí odkaz: https://doaj.org/article/f23f2015e98a40c6bb6d0443828e3904

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Akademický článek

MgB2 powders and bioevaluation of their interaction with planktonic microbes, biofilms, and tumor cells

Autor: P. Badica, N.D. Batalu, M.C. Chifiriuc, M. Burdusel, M.A. Grigoroscuta, G. Aldica, I. Pasuk, A. Kuncser, M. Enculescu, M. Popa, L.G. Marutescu, I. Gheorghe, O. Thamer, C. Bleotu, G. Gradisteanu Pircalabioru, L. Operti, V. Bonino, A. Agostino, M. Truccato

Publikováno v: Journal of Materials Research and Technology, Vol 12, Iss , Pp 2168-2184 (2021)

Commercial nanopowders of MgB2 were characterized from the viewpoint of granulometric distribution, structure, microstructure, and pH behavior in water. The powders are very different: a higher amount of the MgB2 phase with a lower tendency for agglo

Externí odkaz: https://doaj.org/article/8983471a74904ef6abb8a7927512924f

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Akademický článek

Antibacterial composite coatings of MgB2 powders embedded in PVP matrix

Autor: P. Badica, N. D. Batalu, M. Burdusel, M. A. Grigoroscuta, G. Aldica, M. Enculescu, G. Gradisteanu Pircalabioru, M. Popa, L. G. Marutescu, B. G. Dumitriu, L. Olariu, A. Bicu, B. Purcareanu, L. Operti, V. Bonino, A. Agostino, M. Truccato, M. C. Chifiriuc

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)

Abstract Three commercial powders of MgB2 were tested in vitro by MTS and LDH cytotoxicity tests on the HS27 dermal cell line. Depending on powders, the toxicity concentrations were established in the range of 8.3–33.2 µg/ml. The powder with the l

Externí odkaz: https://doaj.org/article/cf366c5d080940dabba1a361faf8d912

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Akademický článek

Effect of starting materials and sintering temperature on microstructure and optical properties of Y2O3:Yb3+ 5 at% transparent ceramics

Autor: R. P. Yavetskiy, A. E. Balabanov, S. V. Parkhomenko, O. S. Kryzhanovska, A. G. Doroshenko, P. V. Mateychenko, A. V. Tolmachev, Jiang Li, Nan Jiang, L. Gheorghe, M. Enculescu

Publikováno v: Journal of Advanced Ceramics, Vol 10, Iss 1, Pp 49-61 (2020)

Abstract Y2O3:Yb3+ 5 at% ceramics have been synthesized by the reactive sintering method using different commercial yttria powders (Alfa-Micro, Alfa-Nano, and ITO-V) as raw materials. It has been shown that all Y2O3 starting powders consist from aggl

Externí odkaz: https://doaj.org/article/6a01fbcf5d2248bcad81397b4e50e91a

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Akademický článek

Influences of Dispersions’ Shapes and Processing in Magnetic Field on Thermal Conductibility of PDMS–Fe3O4 Composites

Autor: V. Stancu, A. Galatanu, M. Enculescu, M. Onea, B. Popescu, P. Palade, M. Aradoaie, R. Ciobanu, L. Pintilie

Publikováno v: Materials, Vol 14, Iss 13, p 3696 (2021)

Composites of magnetite (Fe3O4) nanoparticles dispersed in a polydimethylsiloxane (PDMS) matrix were prepared by a molding process. Two types of samples were obtained by free polymerization with randomly dispersed particles and by polymerization in a

Externí odkaz: https://doaj.org/article/11e6b8198168441889dc1aca1298007e

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