Ceramics — Open Access Journal
Ceramics (ISSN 2571-6131) is an international open access journal of ceramics science and engineering published quarterly online by MDPI.
- Open Access - free for readers, free publication for well-prepared manuscripts submitted in 2018.
- Rapid publication: accepted papers are immediately published online.
- Recognition of Reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done.
Electrical Behavior and Microstructural Features of Electric Field-Assisted and Conventionally Sintered 3 mol% Yttria-Stabilized Zirconia►▼ Figures
Ceramics 2018, 1(1), 2; doi:10.3390/ceramics1010002 - 21 February 2018
ZrO2: 3 mol% Y2O3 (3YSZ) polycrystalline pellets were sintered at 1400 °C and by applying an alternating current (AC) electric field at 1000 °C. An alumina sample holder with platinum wires for connecting the sample to a power[...] Read more.
ZrO2: 3 mol% Y2O3 (3YSZ) polycrystalline pellets were sintered at 1400 °C and by applying an alternating current (AC) electric field at 1000 °C. An alumina sample holder with platinum wires for connecting the sample to a power supply was designed for the electric field-assisted sintering experiments. The apparent density was evaluated with the Archimedes technique, the grain size distribution by analysis of scanning electron microscopy images, and the electrical behavior by the impedance spectroscopy technique. Sintering with the application of AC electric fields to 3YSZ enhances its ionic conductivity. An explanation is proposed, based on the dissolution back to the bulk of chemical species, which are depleted at the grain boundaries, leading to an increase in the oxygen vacancy concentration. For the enhancement of the grain boundary conductivity, an explanation is given based on the diminution of the concentration of depleted chemical species, which migrate to the bulk. This migration leads to a decrease of the potential barrier of the space charge region, known to be responsible for blocking the oxide ions through the intergranular region. Moreover, the heterogeneity of the distribution of the grain sizes is ascribed to the skin effect, the tendency of the AC current density to be largest near the surface, decreasing towards the bulk. Full article
Welcome to Ceramics: A New Open Access Scientific Journal on Ceramics Science and Engineering
Ceramics 2018, 1(1), 1; doi:10.3390/ceramics1010001 - 20 October 2017
13 March 2018
MDPI Becoming a Member of UKSG
MDPI Becoming a Member of UKSG
Special Issue in CeramicsAdvances in the Field of Nanostructured Ceramic Composites Guest Editors: Laura Montanaro, Paola Palmero
Deadline: 15 May 2018
Special Issue in CeramicsGraphene and Carbon Nanotube Modified Ceramics Guest Editor: Konstantinos Dassios
Deadline: 15 June 2018
Special Issue in CeramicsFunctional Ceramics for Energy Applications Guest Editors: Kyle G. Webber, Tor Grande, Mari-Ann Einarsrud
Deadline: 1 September 2018
Special Issue in CeramicsDesign, Fabrication and Assessment of Nanostructured Materials and Systems for Advanced Optical Applications Guest Editors: Alessandro Chiasera, Anna Lukowiak, Francesco Scotognella, Maurizio Ferrari
Deadline: 30 September 2018