Influence of silica nanospheres on corrosion behavior of magnesium matrix syntactic foam

Qureshi, Waqar Ahmad; Kannan, Sathish; Vincent, S.; Eddine, N. N.; A, Muhammed; Gupta, Manoj; Karthikeyan, R.; Badari, V.

doi:10.1088/1757-899x/346/1/012012

Cited by 7 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the CR of the syntactic foams are lower than that of pure AZ61 due to the absence of galvanic interaction between FAMs and AZ61 matrix [26] and reduction in the active matrix area (due to the presence of FAMs) exposed to the corrosion medium [14]. Moreover, this observation agrees with CR reported in some earlier studies on Mg alloy AZ91D/hollow glass syntactic foam samples [14], Mg reinforced with hollow silica nanospheres [13], and Mg reinforced with in-situ MgO and Mg-Zn intermetallics [21].…”

Section: Resultssupporting

confidence: 89%

“…This is attributed to the presence of HGMs, which reduce the overall surface area of the matrix [14]. Similarly, silica nanospheres are reported to enhance the corrosion resistance of Mg in both Hank's buffered saline and PBS solutions [13].…”

Section: Introductionmentioning

confidence: 94%

“…Studies on the corrosion behaviour of Mg-based syntactic foams are limited [13, 14]. In a study focusing on Mg alloy AZ91D syntactic foams containing hollow glass microspheres (HGM), the authors report that the syntactic foam samples show improved corrosion resistance in 3.5% sodium chloride (NaCl) solution compared with the base alloy.…”

Section: Introductionmentioning

confidence: 99%

“…Mg-based syntactic foams have potentials to be used in some structural applications where they may be exposed to some corrosive media. These few studies [13, 14] are insufficient to adequately establish their corrosion behaviour. Therefore, more studies are required to provide further information and knowledge on their corrosion behaviour, especially for those prepared via powder metallurgy (PM) approach.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Microstructural characterisation and corrosion behaviour of microwave-sintered magnesium alloy AZ61/fly ash microspheres syntactic foams

Akinwekomi

2019

Heliyon

View full text Add to dashboard Cite

Magnesium alloy AZ61/fly ash microspheres (FAMs) syntactic composite foams were synthesised via powder metallurgy and microwave (MW) sintering techniques. MW sintering was rapidly completed in 20 min and minimized the formation of brittle interfacial products. Effect of FAMs on the density, microstructure, and corrosion resistance of the alloy were investigated. FAMs were intact and fairly distributed in the microstructure of the foams. Corrosion behaviour in 3 wt.% sodium chloride solution showed that Tafel polarization curves shifted to lower current densities as the volume fraction of FAMs increased. This indicated that FAMs generally enhanced the corrosion resistance of the foams due to minimal galvanic interaction and reduction in the surface area of the material exposed to the corrosion medium. These results are significant and outline the enhancement of corrosion resistance of magnesium alloy AZ61 foams by using FAMs.

show abstract

Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microstructural characterisation and corrosion behaviour of microwave-sintered magnesium alloy AZ61/fly ash microspheres syntactic foams

Akinwekomi

2019

Heliyon

View full text Add to dashboard Cite

show abstract

“…Despite their advantages, several technical challenges have been encountered by researchers that apparently impede the clinical applicability of biodegradable Mg and its alloys and composites. Firstly, early loosening or disintegration of the implants before the tissue has sufficiently healed occurs when pure Mg and some of its alloys corrode too quickly under physiological conditions [77,78]. Besides, the hydrogen gas released rapidly during the corrosion process appears to be too swift to be dealt with by the host tissue [77].…”

Section: Challenges Of Mg-based Biomaterials In Clinical Applicationsmentioning

confidence: 99%

The Potential of Magnesium Based Materials in Mandibular Reconstruction

Prasadh

Ratheesh

Manakari

et al. 2019

Metals

View full text Add to dashboard Cite

The future of biomaterial design will rely on development of bioresorbable implant materials that completely and safely degrade in vivo after the tissues grow, without generating harmful degradation products at the targeted anatomic site. Permanent biomaterials such as Ti6Al4V alloy, 316L stainless steel, and Co-based alloys currently used in mandibular reconstruction often result in stress shielding effects due to mismatch in the Young’s modulus values between the bone and the implant, resulting in implant loosening. Also, allergic responses due to metal ion releases necessitates revision surgery to prevent long term exposure of the body to toxic implant contents. Bioresorbable metals are perceived as revolutionary biomaterials that have transformed the nature of metallic biomaterials from bioinert to bioactive and multi-bio functional (anti-bacterial, anti-proliferation, and anti-cancer). In this aspect, magnesium (Mg)-based materials have recently been explored by the biomedical community as potential materials for mandibular reconstruction, as they exhibit favorable mechanical properties, adequate biocompatibility, and degradability. This article reviews the recent progress that has led to advances in developing Mg-based materials for mandibular reconstruction; correlating with the biomechanics of mandible and types of mandibular defects. Mg-based materials are discussed regarding their mechanical properties, corrosion characteristics, and in vivo performance. Finally, the paper summarizes findings from this review, together with a proposed scope for advancing the knowledge in Mg-based materials for mandibular reconstruction.

show abstract

Sliding Wear Maps for AZ31 Magnesium Alloy Reinforced with Thin Walled Hollow Alumina Microspheres

Vavanan

Kannan

Karthikeyan³

et al. 2022

J Bio Tribo Corros

View full text Add to dashboard Cite

Influence of silica nanospheres on corrosion behavior of magnesium matrix syntactic foam

Cited by 7 publications

References 8 publications

Microstructural characterisation and corrosion behaviour of microwave-sintered magnesium alloy AZ61/fly ash microspheres syntactic foams

Microstructural characterisation and corrosion behaviour of microwave-sintered magnesium alloy AZ61/fly ash microspheres syntactic foams

The Potential of Magnesium Based Materials in Mandibular Reconstruction

Sliding Wear Maps for AZ31 Magnesium Alloy Reinforced with Thin Walled Hollow Alumina Microspheres

Contact Info

Product

Resources

About