Details

Autor(en) / Beteiligte

• Muccillo, R.
• Esposito, V.
• de Florio, D.Z.
• Muccillo, E.N.S.

Titel

Electric field-assisted pressureless sintering gadolinium-, yttrium- and samarium-doped barium cerate

Ist Teil von

• Scripta materialia, 2018-11, Vol.156, p.6-9

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Gadolinium-, yttrium- and samarium-doped barium cerate compounds were sintered either conventionally at 1500 °C or applying an electric field at 1200 °C. The combined results of dilatometry and impedance spectroscopy measurements in electric field-assisted sintered specimens show substantial improvement of the electrical conductivity. Improved grain-to-grain contact and the thermal removal of depleted chemical species due to Joule heating at the space charge region are proposed as the main mechanisms for the increase of both the grain boundary and the bulk electrical conductivities, respectively. [Display omitted]