Tape cast multilayer composite of nano zirconia with high toughness
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Tape cast multilayer composite of nano zirconia with high toughness
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| Creator |
Ghosh, S
Guha, A Krishna, K M Mukhopadhyay, Anoop Kumar Maiti, Himadri Sekhar |
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| Description |
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.
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| Publisher |
Taylors and Francis
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| Date |
2006
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/45/1/anoop.pdf
Ghosh, S and Guha, A and Krishna, K M and Mukhopadhyay, Anoop Kumar and Maiti, Himadri Sekhar (2006) Tape cast multilayer composite of nano zirconia with high toughness. Materials and Manufacturing Processes , 21 (7 ). pp. 662-668. ISSN 1042-6914 |
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| Relation |
http://cgcri.csircentral.net/45/
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