Nanostructured Pb(Fe0.5Nb0.5)O3ceramics obtained by spark plasma sintering
| Autor: | William Junior do Nascimento, Roney Carlos da Silva, José Antonio Eiras |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
020502 materials Metallurgy Pulsed DC Sintering Spark plasma sintering 02 engineering and technology Sense (electronics) 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials Grain growth 0205 materials engineering Control and Systems Engineering visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Electrical and Electronic Engineering Electric current 0210 nano-technology Shrinkage |
| Zdroj: | Integrated Ferroelectrics. 174:71-80 |
| ISSN: | 1607-8489 1058-4587 |
| DOI: | 10.1080/10584587.2016.1192414 |
| Popis: | Nanostructured Pb(Fe1/2Nb1/2)O3 (PFN) ceramics were synthesized by an innovative processing route, which involves micro-milling and spark plasma sintering (SPS). This procedure allows obtaining samples with high densities and minimal grain growth. In this sense, the parameters involved during the SPS procedure and the sintering mechanisms were considered. It became evident that the pulsed dc electric current, high heating rates and simultaneous application of pressure improved the transport mechanisms responsible for shrinkage and densification, making it possible to lower the sintering temperature and thereby avoid the grain growth that occurs in conventional sintering. |
| Databáze: | OpenAIRE |
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