| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Fed Univ ABC, BR-09210580 Santo Andre, SP - Brazil
[2] Energy & Nucl Res Inst, Ctr Sci & Technol Mat, BR-05508170 Sao Paulo, SP - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | SCRIPTA MATERIALIA; v. 170, p. 120-123, SEP 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
Experiments on electric field-assisted pressureless sintering were conducted, with a dilatometer connected to a power supply, in zirconia: 8 mol% yttria polycrystalline ceramics exposed to gamma radiation. During heating to 1000 degrees C, an electric field of 150 V cm(-1) was applied at room temperature up to a sharp thickness shrinkage occurred (flash sintering). It was found that the higher the imparted gamma radiation dose the higher the shrinkage. The shrinkage enhancement and the increase of the total ionic conductivity, when compared to non-irradiated sample, were probably due to the increase of oxygen vacancy concentration after exposure to gamma radiation. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies |
| Grantee: | Fabio Coral Fonseca |
| Support Opportunities: | Research Grants - Research Centers in Engineering Program |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |