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| Titel: |
Tape Cast Multilayer Composite of Nano Zirconia with High Toughness |
| Auteur: |
Ghosh, S. Guha, A. Krishna, K. M. Mukhopadhyay, A. K. Maiti, H. S. |
| Verschenen in: |
Materials and manufacturing processes |
| Paginering: | Jaargang 21 (2006) nr. 7 pagina's 662-668 |
| Jaar: |
2006-10-01 |
| Inhoud: |
During the last decade, worldwide attention of researchers has focused on nano-ceramic composites with superior mechanical behavior and improved reliability for structural applications. Here we report the development of a multi-layer composite (MLC) of tape cast nano zirconia with high failure energy. The MLC samples were fabricated by thermocompression of green tapes prepared from 3 mole % yttria stabilized zirconia (3-YSZ) powder with a primary crystallite size of 27 nm. Depending on the number of layers, the MLC samples exhibited failure energy (238.97 KJm-3) more than two times higher than that of the single tape (≈107 KJm-3) with a reasonably high bi-axial flexural strength (≈630 MPa), high hardness (≈ 13 GPa at 49 N), and indentation fracture toughness nearly four times as high as that of the single tape. In addition, these MLC materials showed the presence of a R-curve behavior. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 17 van 18 gevonden artikelen
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