Corrosion of Al2O3-Ti composites under inflammatory condition in simulated physiological solution

Bahraminasab, Marjan; Bozorg, Mansoor; Ghaffari, Somaye; Kavakebian, Fatemeh

doi:10.1016/j.msec.2019.04.047

Cited by 26 publications

(14 citation statements)

References 60 publications

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“…It has been previously reported that the corrosion resistance of laser clad ferrite-based alloy coatings could be increased significantly by the addition of La 2 O 3 [13]. Similar results were reported by a previous study that assessed the effect of the oxide phase on the corrosion behavior of metallic composite [4,[17][18][19].…”

Section: Electrochemical Measurementsupporting

confidence: 88%

The behavior of Cu/Cu-C-La2O3 nanocomposites prepared by spark plasma sintering: physical and electrochemical properties

Amirjan¹,

Bozorg²,

Shadkar³

2021

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In the present paper, the effect of La2O3 nanoparticle was studied on the physical and electrochemical properties of Cu/Cu-C contacts. The nanocomposite materials were prepared using different La2O3 contents (1.0-2.0 wt.%) processed by the spark plasma sintering method. The microstructural observations, density, hardness, electrical resistance measurements, and electrochemical behavior characterization were conducted. The results showed that the hardness, electrical resistance, and corrosion resistance of composites increase with the addition of La2O3 nanoparticle.

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Section: Electrochemical Measurementsupporting

confidence: 88%

The behavior of Cu/Cu-C-La2O3 nanocomposites prepared by spark plasma sintering: physical and electrochemical properties

Amirjan¹,

Bozorg²,

Shadkar³

2021

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“…28 In the oral environment, titanium for dental applications depends on surface oxides for corrosion resistance. 29,30 Aer immersing the metal in the medium containing P. gingivalis in this study, the XPS survey spectra demonstrated an obvious decrease in the relative composition of Ti and O on the pure and SLA titanium surfaces when compared to the control groups. As shown in the XPS high-resolution spectra, it was further conrmed that the oxide layer formed on the outermost surface of the pure and SLA titanium was composed predominantly of TiO 2 , which declined aer exposure to P. gingivalis.…”

Section: Discussionmentioning

confidence: 53%

Biocorrosion of pure and SLA titanium surfaces in the presence of Porphyromonas gingivalis and its effects on osteoblast behavior

Chen

et al. 2020

RSC Adv.

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“…Al 2 O 3 -Ti biocomposites were fabricated by spark plasma sintering (SPS), in the last decade, and their mechanical and corrosion characteristics were evaluated which showed promising results [15][16][17][18][19][20]. Superior flaw tolerance and toughness were obtained for 25 vol.% Ti rather than pure Al 2 O 3 [16].…”

Section: Introductionmentioning

confidence: 99%

In vivo performance of Al2O3-Ti bone implants in the rat femur

et al. 2021

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Background Alumina-titanium (Al2O3-Ti) biocomposites have been recently developed with improved mechanical properties for use in heavily loaded orthopedic sites. Their biological performance, however, has not been investigated yet. Methods The aim of the present study was to evaluate the in vivo biological interaction of Al2O3-Ti. Spark plasma sintering (SPS) was used to fabricate Al2O3-Ti composites with 25 vol.%, 50 vol.%, and 75 vol.% Ti content. Pure alumina and titanium were also fabricated by the same procedure for comparison. The fabricated composite disks were cut into small bars and implanted into medullary canals of rat femurs. The histological analysis and scanning electron microscopy (SEM) observation were carried out to determine the bone formation ability of these materials and to evaluate the bone-implant interfaces. Results The histological observation showed the formation of osteoblast, osteocytes with lacuna, bone with lamellar structures, and blood vessels indicating that the healing and remodeling of the bone, and vasculature reconstruction occurred after 4 and 8 weeks of implantation. However, superior bone formation and maturation were obtained after 8 weeks. SEM images also showed stronger interfaces at week 8. There were differences between the composites in percentages of bone area (TB%) and the number of osteocytes. The 50Ti composite showed higher TB% at week 4, while 25Ti and 75Ti represented higher TB% at week 8. All the composites showed a higher number of osteocytes compared to 100Ti, particularly 75Ti. Conclusions The fabricated composites have the potential to be used in load-bearing orthopedic applications.

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Corrosion of Al2O3-Ti composites under inflammatory condition in simulated physiological solution

Cited by 26 publications

References 60 publications

The behavior of Cu/Cu-C-La2O3 nanocomposites prepared by spark plasma sintering: physical and electrochemical properties

The behavior of Cu/Cu-C-La2O3 nanocomposites prepared by spark plasma sintering: physical and electrochemical properties

Biocorrosion of pure and SLA titanium surfaces in the presence of Porphyromonas gingivalis and its effects on osteoblast behavior

In vivo performance of Al2O3-Ti bone implants in the rat femur

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