Publication: Microstructure analysis and low temperature degradation resistance of doped 3Y-TZP ceramics for hip implant application
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Date
2016
Authors
Ragurajan D.
Golieskardi M.
Satgunam M.
Ng A.M.H.
Journal Title
Journal ISSN
Volume Title
Publisher
Trans Tech Publications Ltd
Abstract
The effect of manganese oxide (MnO2) and aluminum oxide (Al2O3) addition of up to 1 wt% in yttria-stabilized tetragonal zirconia polycrystals (Y-TZP), sintered in air at 1450�C, was examined. The low temperature degradation resistance was observed by immersing the sample in Ringer solution at 37�C over a period of 8 weeks, whereby the weight loss and the SEM image of sample was analyzed to generate the degradation pattern of the sample. Additions of 0.6wt% Al2O3/ 0.4wt% MnO2 were found to be beneficial in retarding the ageing of the ceramics sample. Therefore the sample was deemed beneficial in the use of orthopedic applications. � 2016 Trans Tech Publications, Switzerland.
Description
Ceramic materials; Ceramic Prosthetics; Manganese oxide; Sintered alumina; Sintering; Temperature; Yttrium oxide; Zirconia; Degradation patterns; Hip implants; Low-temperature degradations; Microstructure analysis; Orthopedic applications; Ringer solutions; Weight loss; Yttria stabilized tetragonal zirconia polycrystals; Aluminum oxide