influence of manganese on the sintering properties of tetragonal zirconia

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ID: 233182
2013
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Abstract
The influence of small additions of MnO2 (up to 1 wt. %) on the sintering behaviour of yttria-stabilized zirconia sintered over the temperature range from 1250°C to 1500°C was investigated. It was found that the mechanical properties of Y-TZP were dependent on the dopant amount and sintering temperature. The results revealed that relative densities above 97.5 % of theoretical (i.e. > 5.95 Mg m-3) could be obtained in Y-TZPs sintered at low temperatures, 1250°C and 1300°C, with the additions of ≥ 0.3 wt. % MnO2. In comparison to the undoped samples, the additions of up to 1 wt. % MnO2 and for sintering up to 1350°C was found to be beneficial in enhancing the Vickers hardness of the ceramic. The fracture toughness of Y-TZP however, was found to increase only in the 1 wt. % MnO2-doped samples when sintered above 1400°C. The relation between the measured mechanical properties is discussed with the emphasis on the role of the manganese oxide.
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ramesh2013ceramics-siliktyinfluence Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors S. Ramesh, W.J. Kelvin Chew, C.Y. Tan, J. Purbolaksono, A.M Noor, M.A. Hassan, U. Sutharsini, M. Satgunam, W.D. Teng
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Journal european journal of organic chemistry
Year 2013
DOI
DOI not found
URL
http://www.ceramics-silikaty.cz/2013/pdf/2013_01_028.pdf
Keywords
zirconia y-tzp manganese oxide glass Ceramics mechanical propertiesclay industries

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