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ID 60428
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Author
Konishi, Toshiisa Graduate School of Natural Science and Technology, Okayama University
Yamashita, Kohei Graduate School of Natural Science and Technology, Okayama University
Nagata, Kohei Organization for the Strategic Coordination of Research and Intellectual Property, Meiji University
Lim, Poon Nian Department of Mechanical Engineering, National University of Singapore
Thian, Eng San Department of Mechanical Engineering, National University of Singapore
Aizawa, Mamoru Department of Applied Chemistry, School of Science and Technology, Meiji University
Abstract
Solid-state nuclear magnetic resonance (NMR) spectroscopy is a technique, which can be used to provide insight into the chemical structure of non-crystalline and crystalline materials. Hence, the present study aimed to elucidate the setting mechanism of CPC, which was fabricated using beta -tricalcium phosphate (beta -TCP)-inositol phosphate (IP6) composite powder using NMR In addition, the effect of IP6 on the local chemical structure of the beta -TCP-IP6 composite powder and its hardened cement would also be investigated. The H-1 -> P-31 heteronuclear correlation NMR spectrum revealed that an amorphous hydrated layer, along with small amount of hydroxyapatite (HA) was formed on the surface of beta -TCP during the ball-milling process. Results demonstrated that the IP6 in the hydrated layer on the surface of beta -TCP inhibited the formation of HA. Moreover, the setting reaction of the cement was mainly triggered by the dissolution of the amorphous hydrated layer on beta -TCP surface, and subsequent precipitation, followed by the inter-entanglement between the HA crystals on the beta -TCP.
Keywords
beta-tricalcium phosphate
calcium-phosphate cement
inositol phosphate
solid-state NMR
setting mechanism
Published Date
2019-06-03
Publication Title
Journal of Physics: Materials
Volume
volume2
Issue
issue3
Publisher
IOP Publishing
ISSN
2515-7639
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
© 2019 The Author(s).
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publisher
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1088/2515-7639/ab17e5
License
https://creativecommons.org/licenses/by/3.0/