Enhanced Mechanical Properties and Corrosion Behavior of Biodegradable Mg-Zn/HA Composite

Salleh, Emee Marina; Hussain, Zuhailawati; Ramakrishnan, Sivakumar; Dhindaw, B. K.

doi:10.1007/s11661-017-4028-7

Cited by 23 publications

(6 citation statements)

References 43 publications

(48 reference statements)

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“…According to our knowledge, only one study concerning Zn/HA composites has been published [23]. Until now, zinc was predominantly used as a part of Mg/HA composites [36,37], of HA/Zn coatings [38,39] or of composites with a hydroxyapatite matrix [40,41].…”

Section: Introductionmentioning

confidence: 99%

Characterization of a Zn-Ca5(PO4)3(OH) Composite with a High Content of the Hydroxyapatite Particles Prepared by the Spark Plasma Sintering Process

Pinc

Čapek

Kubásek

et al. 2020

Metals

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Zinc and zinc alloys have been studied due to their corrosion properties as potentially biodegradable materials. In this study, a zinc/hydroxyapatite composite (Zn/HA) containing 16 wt % HA was prepared by spark plasma sintering and characterized in detail. The microstructure, mechanical and corrosion properties were studied and the mutual relations between properties and microstructure were found. The porosity was evaluated to be approximately 18%. The mechanical properties (ultimate compression strength = 65 MPa and ultimate flexural strength = 120 MPa) are sufficient for the potential scaffolding and augmentation of cancellous bone. The flexural properties of these materials were measured for the first time. Immersion tests and subsequent analyses confirmed no direct participation of hydroxyapatite in the corrosion process and an ideal corrosion rate of approximately 0.4 mm/year. The amount of released zinc was between 4–6 mg/day corresponding with the maximal usable surface area of 25 cm2. All the results suggest that the Zn/HA composite is suitable as a potential biodegradable material (from the point of view of mechanical and corrosion properties) for the replacement of cancellous bones.

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Section: Introductionmentioning

confidence: 99%

Characterization of a Zn-Ca5(PO4)3(OH) Composite with a High Content of the Hydroxyapatite Particles Prepared by the Spark Plasma Sintering Process

Pinc

Čapek

Kubásek

et al. 2020

Metals

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“…Furthermore, the lower the crystallization size, the greater the development of the protective layer associated with higher nucleation positions at the grain boundaries. The corrosion potential of Mg-5.6Zn/xHA is -1.46 V, and it is shifting in a direction that is more representative of higher corrosion resistance [33].…”

Section: Mg-based Composite For Implant Applicationmentioning

confidence: 98%

The Manufacturing Process and Corrosion Properties of Magnesium Matrix Composites: A Review

Zuliantoni,

Smaradhana

2024

memi

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Magnesium-based biomaterials are a new generation of biodegradable metals that are playing a major role in the development of future implant materials. Magnesium-based materials can corrode too rapidly during physiological conditions and lose their usefulness before bones heal. This review aims to provide a comprehensive overview of the selection of suitable matrix and reinforcing materials as well as suitable process techniques to achieve better corrosion resistance targeted for dental implant applications. It also discusses the advantages and disadvantages of testing methods and corrosion media commonly used for biomedical applications. Specific search strategies are carried out in electronic databases: Springer, Pubmed, and Sciencedirect as well as google without limiting years. Papers are selected after reviewing their title, abstract, and full text. Then study the objectives, criteria, methods, and results. Based on the available literature, we can conclude that for magnesium-based composite matrices it is preferable to use commercially available Mg AZ91D alloys to investigate their corrosion behavior in vitro and in vivo environments. While for the composite reinforcement, bioceramic materials can be used, including Hydroxyapatite (HA) added with Zirconia ceramics (ZrO2) or Titanium metal oxide (TiO2). Furthermore, the process of making ceramic composites uses powder metallurgy (PM) and squeeze casting methods. Then, corrosive testing can use the commonly used electrochemical methods, namely Potentiodynamic Polarization (PDP) and Electrochemical Impedance Spectroscopy (EIS) with corrosive SBF media.

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“…The observed increase in the mechanical properties of the alloy after Ake addition agrees well with some previous research on biocermets, e.g., Fe−β-TCP, 32 Mg−bredigite, 61,62 and Mg−Zn−HA. 63,64 Second-phase reinforcement is a wellknown strengthening mechanism in composites, with the "rule of mixtures" providing the means to estimate the theoretical properties of a combination of materials. In this case, the hard Ake bioceramic particles acted as the reinforcement phase in the Fe35Mn matrix.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Fabrication and Properties of Biodegradable Akermanite-Reinforced Fe35Mn Alloys for Temporary Orthopedic Implant Applications

Zhang

Yang

Dehghan-Manshadi

et al. 2023

ACS Biomater. Sci. Eng.

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As a representative of the biodegradable iron (Fe)− manganese (Mn) alloys, Fe35Mn has been investigated as a promising biodegradable metal biomaterial for orthopedic applications. However, its slow degradation rate, though better than pure Fe, and poor bioactivity are concerns that retard its clinical applications. Akermanite (Ca 2 MgSi 2 O 7 , Ake) is a silicatebased bioceramic, showing desirable degradability and bioactivity for bone repair. In the present work, Fe35Mn/Ake composites were prepared via a powder metallurgy route. The effect of different contents of Ake (0, 10, 30, 50 vol %) on the microstructure, mechanical properties, degradation, and biocompatibility of the composites was investigated. The ceramic phases were found to be evenly distributed in the metal matrix. The Ake reacted with Fe35Mn and generated CaFeSiO 4 during sintering. The addition of Ake increased the relative density of pure Fe35Mn from ∼90 to ∼94−97%. The compressive yield strength (CYS) and elastic modulus (E c ) increased with increasing Ake, with Fe35Mn/50Ake exhibiting the highest CYS of ∼403 MPa and E c of ∼18 GPa. However, the ductility decreased at higher Ake concentrations (30 and 50%). Microhardness also showed an increasing trend with the addition of Ake. Electrochemical measurements indicated that higher concentrations of Ake (30 and 50%) could potentially increase the corrosion rate of Fe35Mn from ∼0.25 to ∼0.39 mm/year. However, all of the compositions tested did not show measurable weight loss after immersion in simulated body fluid (SBF) for 4 weeks, attributed to the use of prealloyed raw material, high sintered density of the fabricated composites, and the formation of a dense Ca-, P-, and O-rich layer on the surface. Human osteoblasts on Fe35Mn/Ake composites showed increasing viability with increasing Ake content, indicating improved in vitro biocompatibility. These preliminary results suggest that Fe35Mn/Ake can be a potential material for biodegradable bone implant applications, particularly Fe35Mn/30Ake, if the slow corrosion of the composite can be addressed.

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Enhanced Mechanical Properties and Corrosion Behavior of Biodegradable Mg-Zn/HA Composite

Cited by 23 publications

References 43 publications

Characterization of a Zn-Ca5(PO4)3(OH) Composite with a High Content of the Hydroxyapatite Particles Prepared by the Spark Plasma Sintering Process

Characterization of a Zn-Ca5(PO4)3(OH) Composite with a High Content of the Hydroxyapatite Particles Prepared by the Spark Plasma Sintering Process

The Manufacturing Process and Corrosion Properties of Magnesium Matrix Composites: A Review

Fabrication and Properties of Biodegradable Akermanite-Reinforced Fe35Mn Alloys for Temporary Orthopedic Implant Applications

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