Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Raquel Astacio"'
Publikováno v:
Metals, Vol 11, Iss 6, p 994 (2021)
The fabrication of soft magnetic Fe parts by the medium-frequency electrical resistance sintering (MF-ERS) technique is studied in this paper. This consolidation technique involves the simultaneous application to metallic powders of pressure and heat
Externí odkaz:
https://doaj.org/article/f702fe011d2347198a462ccb610fab3f
Publikováno v:
Materials, Vol 13, Iss 9, p 2131 (2020)
A commercially pure (c.p.) nickel powder was consolidated by Medium-Frequency Electrical Resistance Sintering (MF-ERS). In this consolidation technique, a pressure and the heat released by a high-intensity and low-voltage electrical current are concu
Externí odkaz:
https://doaj.org/article/eefd2d67a8b64e069a0be5c6676a1593
Influence of Processing Parameters on the Conduct of Electrical Resistance Sintering of Iron Powders
Publikováno v:
Metals, Vol 10, Iss 4, p 540 (2020)
The influence of the applied pressure and electrical parameters on the macrostructure of specimens consolidated by the medium-frequency electrical resistance sintering technique (MF-ERS) is analysed in this work. This technique is based on the applic
Externí odkaz:
https://doaj.org/article/b3653f99006a4acbb9c260ca69f2d4e0
Publikováno v:
Metals, Vol 10, Iss 4, p 443 (2020)
The crystallization process, both at the initial and subsequent stages, of amorphous Al88-RE4-Ni8 alloys (RE = Y, Sm and Ce) has been studied. Additionally, the consequences of adding 1 at.% Cu replacing Ni or Al were studied. The stability of the am
Externí odkaz:
https://doaj.org/article/a1fa36f1fd904e9791a536f44a83d431
Autor:
Jesús Cintas, Raquel Astacio, Francisco G. Cuevas, Juan Manuel Montes, Thomas Weissgaerber, Miguel Ángel Lagos, Yadir Torres, José María Gallardo
Publikováno v:
Metals, Vol 9, Iss 2, p 159 (2019)
In this work, powders of cemented ultrafine WC-6 wt.% Co were consolidated. The feasibility of the medium frequency electrical resistance sintering (MF-ERS) technique were studied to prevent WC grain growth during consolidation. Porosity and hardness
Externí odkaz:
https://doaj.org/article/ef4028883b294a9bbf436ffe3e6c303c
Autor:
José María Gallardo, Iñigo Agote, Raquel Astacio, Thomas Schubert, Jesús Cintas, Juan Manuel Montes, Yadir Torres, Francisco G. Cuevas
Publikováno v:
Metals, Vol 9, Iss 2, p 172 (2019)
Cemented carbide is a hard composite material, used widely in a variety of industries. The value of the global tungsten carbide market is expected to grow by 4.4% (compound annual growth rate) from 2017 to 2022. One of the main markets is in metal cu
Externí odkaz:
https://doaj.org/article/d512117167454f6dbb4d0b10afd7804d
Autor:
Juan Manuel Montes, Francisco Gómez Cuevas, Fátima Ternero, Raquel Astacio, Eduardo Sánchez Caballero, Jesús Cintas
Publikováno v:
Metals, Vol 8, Iss 6, p 426 (2018)
Commercially pure (C.P.) iron powders with a deliberate high degree of oxidation were consolidated by medium-frequency electrical resistance sintering (MF-ERS). This is a consolidation technique where pressure, and heat coming from a low-voltage and
Externí odkaz:
https://doaj.org/article/3521ef333bbd4931b8090e00c06d152e
Autor:
Juan Manuel Montes, Francisco Gómez Cuevas, Fátima Ternero, Raquel Astacio, Eduardo Sánchez Caballero, Jesús Cintas
Publikováno v:
Metals, Vol 7, Iss 11, p 479 (2017)
In this paper, a phenomenological model to predict the value of the electrical resistance of a compressed metal powder mass is proposed. The model, based on the experimental compressibility and resistivity-porosity curves, is useful in the field of t
Externí odkaz:
https://doaj.org/article/ad2708b5505c4e60920b5ba36aa40f7a
Autor:
Petr Urban, Fátima Ternero Fernández, Rosa María Aranda Louvier, Raquel Astacio Lopez, Francisco G. Cuevas
Publikováno v:
Materials Science Forum. 1059:3-8
Laser diffraction, Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Differential Scanning Calorimetry (DSC) were employed to characterize the particle size, morphology and structure of mechanical
Autor:
Fátima Ternero Fernández, Petr Urban, Raquel Astacio Lopez, Rosa María Aranda Louvier, Juan Manuel Montes Martos
Publikováno v:
Materials Science Forum. 1059:9-14
A commercially pure (c.p.) nickel powder was consolidated by Electrical-Discharge-Consolidation (EDC technique), using an equipment based on the technology developed for the welding industry (stud welding). The main advantage of the EDC technology is