CERN Accelerating science

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1.
Weak acid leaching of MgB$_2$ to purify magnesiothermic boron powder / Capra, Marco (Genoa U.) ; Bovone, Gianmarco (CNR, Italy) ; Loria, Federico (CNR, Italy) ; Bernini, Cristina (CNR, Italy) ; Hopkins, Simon C (CERN) ; Ballarino, Amalia (CERN) ; Tropeano, Matteo (ASG Supercond., Genova) ; Tumino, Andrea (ASG Supercond., Genova) ; Grasso, Gianni (ASG Supercond., Genova) ; Ferdeghini, Carlo (CNR, Italy) et al.
We have established a new procedure for recovering boron contained in oxidized MgB$_2$ phase. Incorrect conditions of synthesis or conservation, or excess impurities in precursors, can lead to MgO formation with consequent degradation of superconducting properties, thus representing a possible problem in the industrial production of MgB$_2$ conductors following the ex-situ PIT process. [...]
2021 - Published in : Materials Today Communications 26 (2021) 101731
2.
Evidence for Longitudinal Homogeneity and No J$_e$ Degradation in Bi-2212 Wires Realized by the GDG Process / Leoncino, Luca (CNR-SPIN, Naples) ; Celentano, Giuseppe (ENEA, Rome) ; Chiarelli, Sandro (ENEA, Rome) ; Leveratto, Alessandro (CNR-SPIN, Naples) ; Putti, Marina (U. Genoa) ; Ferdeghini, Carlo (CNR-SPIN, Naples) ; Ballarino, Amalia (CERN) ; Hopkins, Simon C (CERN) ; Malagoli, Andrea (CNR-SPIN, Naples)
The GDG fabrication process developed at CNR-SPIN is a promising method for producing Bi-2212 wires without overpressure processing. In this paper, critical current measurements performed at ENEA on both short and long samples in magnetic fields up to 14 T are compared. [...]
2019 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 6400305
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.6400305
3.
Characterization of Freeze-Dried Boron Nanopowders and Parameter Optimization in Ex Situ MgB2 Wire Production / Capra, Marco (U. Genoa ; CNR-SPIN, Naples) ; Bovone, Gianmarco (CNR-SPIN, Naples) ; Loria, Federico (CNR-SPIN, Naples) ; Bernini, Cristina (CNR-SPIN, Naples) ; Tropeano, Matteo (ASG Supercond., Genova) ; Tumino, Andrea (ASG Supercond., Genova) ; Grasso, Gianni (ASG Supercond., Genova) ; Hopkins, Simon C (CERN) ; Ballarino, Amalia (CERN) ; Ferdeghini, Carlo (Genoa U.) et al.
This article reports a study to identify optimal synthesis parameters for a pure boron precursor prepared following a patented process developed at CNR-SPIN laboratories, performed in the framework of a collaboration between CNR-SPIN and CERN. Boron is a precursor that plays a crucial role in the MgB2wire manufacturing, as a consequence, the synthesis parameters of the superconducting phase have been investigated. [...]
2021 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 6200107
4.
Analysis of Fe(Se,Te) Films Deposited On Unbuffered Invar 36 / Sylva, Giulia (Genoa U.) ; Malagoli, Andrea (CNR-SPIN, Genova) ; Bellingeri, Emilio (CNR-SPIN, Genova) ; Putti, Marina (Genoa U.) ; Ferdeghini, Carlo (CNR-SPIN, Genova) ; Vannozzi, Angelo (ENEA, Frascati) ; Celentano, Giuseppe (ENEA, Frascati) ; Hopkins, Simon C (CERN) ; Lunt, Alexander (CERN) ; Ballarino, Amalia (CERN) et al.
In this paper, the feasibility of producing Fe(Se,Te)-coated conductors on cost-effective, unbuffered Invar 36 substrates is studied. A suitable substrate with a sharp {001}<100> texture and a misorientation angle lower than 10° was developed, and the possibility of growing epitaxial thin films without any buffer layer was demonstrated. [...]
2019 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 7300105
5.
The CERN FCC Conductor Development Program: A Worldwide Effort for the Future Generation of High Field Magnets / Ballarino, Amalia (CERN) ; Hopkins, Simon (CERN) ; Bordini, Bernardo (CERN) ; Richter, David (CERN) ; Tommasini, Davide (CERN) ; Bottura, Luca (CERN) ; Benedikt, Michael (CERN) ; Sugano, Michinaka ; Ogitsu, Toru ; Kawashima, Shinya (Kobe Steel) et al.
The study of next-generation high-energy accelerators based on 16 T dipoles has emphasized the need for higher performance, cost-effective Nb$_3$Sn superconducting wires. A Conductor Development Program aiming to reach a non-copper critical current density ($J_c$) of 1500 A/mm2 at 16 T and 4.2 K has been launched by CERN, with the involvement of industry and laboratories worldwide. [...]
CERN-ACC-2019-0001.- Geneva : CERN, 2019 - 9 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 6000709 Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.6000709

See also: similar author names
40 Ferdeghini, C
1 Ferdeghini, C.
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