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Spark plasma sintering of sol–gel derived 45S5 bioglass®-ceramics : mechanical properties and biocompatibility evaluation

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Spark plasma sintering of sol–gel derived 45S5 bioglass®-ceramics : mechanical properties and biocompatibility evaluation

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dc.contributor.author Chen, Q. Z.
dc.contributor.author Xu, Jinling
dc.contributor.author Yu, L. G.
dc.contributor.author Fang, X. Y.
dc.contributor.author Khor, Khiam Aik
dc.date.accessioned 2012-09-14T03:02:20Z
dc.date.available 2012-09-14T03:02:20Z
dc.date.copyright 2011
dc.date.issued 2012-09-14
dc.identifier.citation Chen, Q. Z., Xu, J., Yu, L. G., Fang, X. Y., & Khor, K. A. (2012). Spark plasma sintering of sol–gel derived 45S5 bioglass®-ceramics: mechanical properties and biocompatibility evaluation. Materials Science and Engineering: C, 32(3), 494-502.
dc.identifier.issn 0928-4931
dc.identifier.uri http://hdl.handle.net/10220/8527
dc.description.abstract This work aims to find an efficient sintering technique and optimal sintering conditions of a novel sol–gel derived Bioglass®-ceramic powder so as to achieve much improved mechanical properties compared to conventional Bioglass®. To this end, the spark plasma sintering (SPS) technique was for the first time used to densify the sol–gel derived Bioglass®-ceramic powder. It was found that the sol–gel derived Bioglass®-ceramics sintered with the SPS technique at 950 °C for 15 min had a high Young's modulus value of ~ 110 GPa, which was comparable to that of compact bone and significantly higher than the maximal value achieved by the conventional heat treatment. Moreover, the Bioglass®-ceramic compacts sintered with SPS released alkaline ions slowly and as a result, these highly densified Bioglass®-ceramics exhibited better cytocompatibility at the early stage of cell culture testing, compared to the conventional Bioglass®. Hence, the SPS technique is recommended to be used in the process of sol–gel derived Bioglass®-ceramics and its tissue engineering scaffolds.
dc.language.iso en
dc.relation.ispartofseries Materials science and engineering: C
dc.rights © 2011 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Materials Science and Engineering: C, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.msec.2011.11.023].
dc.subject DRNTU::Engineering::Materials::Plasma treatment.
dc.title Spark plasma sintering of sol–gel derived 45S5 bioglass®-ceramics : mechanical properties and biocompatibility evaluation
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1016/j.msec.2011.11.023
dc.description.version Accepted version

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