Hauptseite > Publikationsdatenbank > Electric current activated sintering (ECAS) of undoped and titanium-doped BiFeO3 bulk ceramics with homogeneous microstructure > print |
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245 | _ | _ | |a Electric current activated sintering (ECAS) of undoped and titanium-doped BiFeO3 bulk ceramics with homogeneous microstructure |
260 | _ | _ | |a Amsterdam [u.a.] |c 2019 |b Elsevier Science |
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520 | _ | _ | |a BiFeO3 ceramics have been consolidated applying an electric current activated/assisted sintering (ECAS) methodology under different electrical conditions. DC experiments produce a flash sintering regime by which the bulk cylindrical specimens densify in a few seconds; however, this goes together with a strong localization of the current flow within the material, leading to a dramatic lack of microstructural and compositional homogeneity. The situation changes under the alternate field; a more gradual FAST (Field Assisted Sintering) event is produced which allows the attainment of an exceptional microstructural homogeneity through the whole sintered compacts. Upon Ti-doping the overall diffusivity of the system is delayed but the AC conditions again yield a remarkable microstructural homogeneity in the consolidated material, this time even at the nanoscale level. Accordingly, bulk BiFeO3 ceramics with homogeneous micro-nanostructure can be successfully prepared by an ECAS methodology and at lower temperatures and much shorter times than by conventional solid-state sintering. |
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700 | 1 | _ | |a Bram, Martin |0 P:(DE-Juel1)129591 |b 3 |
700 | 1 | _ | |a Gonzalez, Jesus |0 P:(DE-Juel1)162271 |b 4 |
700 | 1 | _ | |a Peiteado, M. |0 P:(DE-HGF)0 |b 5 |e Corresponding author |
773 | _ | _ | |a 10.1016/j.jeurceramsoc.2019.01.045 |g Vol. 39, no. 6, p. 2042 - 2049 |0 PERI:(DE-600)2013983-4 |n 6 |p 2042 - 2049 |t Journal of the European Ceramic Society |v 39 |y 2019 |x 0955-2219 |
856 | 4 | _ | |y Published on 2019-01-24. Available in OpenAccess from 2021-01-24. |u https://juser.fz-juelich.de/record/862220/files/Electric%20current%20activated%20sintering%20%28ECAS%29%20of%20undoped%20and%20titanium-doped%20BiFeO3%20bulk%20ceramics%20with%20homogeneous%20microstructure.pdf |
856 | 4 | _ | |y Published on 2019-01-24. Available in OpenAccess from 2021-01-24. |x pdfa |u https://juser.fz-juelich.de/record/862220/files/Electric%20current%20activated%20sintering%20%28ECAS%29%20of%20undoped%20and%20titanium-doped%20BiFeO3%20bulk%20ceramics%20with%20homogeneous%20microstructure.pdf?subformat=pdfa |
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