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Influence of Si sub...
Influence of Si substitution on the reactivity of α-tricalcium phosphate
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- Motisuke, Mariana (författare)
- Bioceramics Laboratory, Science and Technology Institute, UNIFESP, 12231-280 São José dos Campos, SP, Brazil
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- Mestres, Gemma, 1984- (författare)
- Uppsala universitet,Mikrosystemteknik,MST/EMBLA
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- Renó, Caroline O. (författare)
- Bioceramics Laboratory, Science and Technology Institute, UNIFESP, 12231-280 São José dos Campos, SP, Brazil
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- Carrodeguas, Raúl G. (författare)
- Department of Ceramics, Institute of Ceramics and Glass (ICV), CSIC, Kelsen 5, 28049 Madrid, Spain
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- Zavaglia, Cecília A.C. (författare)
- Labiomec, Mechanical Engineering School, State University of Campinas, 13083-860 Campinas, SP, Brazil
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- Ginebra, Maria-Pau (författare)
- Engineering Sciences and Metallurgy Dpt., Technical University of Catalonia, Diagonal 647, 08028 Barcelona, Spain,Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering
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(creator_code:org_t)
- Elsevier BV, 2017
- 2017
- Engelska.
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Ingår i: Materials science & engineering. C, biomimetic materials, sensors and systems. - : Elsevier BV. - 0928-4931 .- 1873-0191. ; 75, s. 816-821
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://upcommons.up...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Silicon substituted calcium phosphates have been widely studied over the last ten years due to their enhanced osteogenic properties. Notwithstanding, the role of silicon on α-TCP reactivity is not clear yet. Therefore, the aim of this work was to evaluate the reactivity and the properties of Si-α-TCP in comparison to α-TCP. Precursor powders have similar properties regarding purity, particle size distribution and specific surface area, which allowed a better comparison of the Si effects on their reactivity and cements properties. Both Si-α-TCP and α-TCP hydrolyzed to a calcium-deficient hydroxyapatite when mixed with water but their conversion rates were different. Si-α-TCP exhibited a slower setting rate than α-TCP, i.e. kSSA for Si-TCP (0.021 g·m− 2·h− 1) was almost four times lower than for α-TCP (0.072 g·m− 2·h− 1). On the other hand, the compressive strength of the CPC resulting from fully reacted Si-α-TCP was significantly higher (12.80 ± 0.38 MPa) than that of α-TCP (11.44 ± 0.54 MPa), due to the smaller size of the entangled precipitated apatite crystals.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- α-Tricalcium phosphate
- Calcium phosphate cement
- Kinetics
- Silicon
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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